132749731 has 2 divisors, whose sum is σ = 132749732. Its totient is φ = 132749730.

The previous prime is 132749723. The next prime is 132749777. The reversal of 132749731 is 137947231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 132749731 - 2³ = 132749723 is a prime.

It is a super-2 number, since 2×132749731² = 35244982161144722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (132740731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66374865 + 66374866.

It is an arithmetic number, because the mean of its divisors is an integer number (66374866).

Almost surely, 2^132749731 is an apocalyptic number.

132749731 is a deficient number, since it is larger than the sum of its proper divisors (1).

132749731 is an equidigital number, since it uses as much as digits as its factorization.

132749731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 132749731 is about 11521.7069481913. The cubic root of 132749731 is about 510.1264981613.

It can be divided in two parts, 13274 and 9731, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 132749731 in words is "one hundred thirty-two million, seven hundred forty-nine thousand, seven hundred thirty-one".