Check if BigDecimal is integer value

Question

Can anyone recommend an efficient way of determining whether a BigDecimal is an integer value in the mathematical sense?

At present I have

Answer 1

Divide the number by 1 and check for a remainder. Any whole number should always have a remainder of 0 when divided by 1.

public boolean isWholeNumber(BigDecimal number) {
    return number.remainder(BigDecimal.ONE).compareTo(BigDecimal.ZERO) == 0;
}