132890731 has 16 divisors (see below), whose sum is σ = 145303200. Its totient is φ = 121056768.

The previous prime is 132890713. The next prime is 132890741. The reversal of 132890731 is 137098231.

It is a cyclic number.

It is not a de Polignac number, because 132890731 - 2⁷ = 132890603 is a prime.

It is a super-2 number, since 2×132890731² = 35319892771428722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132890741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238305 + ... + 238861.

It is an arithmetic number, because the mean of its divisors is an integer number (9081450).

Almost surely, 2^132890731 is an apocalyptic number.

132890731 is a deficient number, since it is larger than the sum of its proper divisors (12412469).

132890731 is a wasteful number, since it uses less digits than its factorization.

132890731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 132890731 is about 11527.8242092773. The cubic root of 132890731 is about 510.3070443783.

The spelling of 132890731 in words is "one hundred thirty-two million, eight hundred ninety thousand, seven hundred thirty-one".