132572491 has 4 divisors (see below), whose sum is σ = 132599032. Its totient is φ = 132545952.

The previous prime is 132572471. The next prime is 132572509. The reversal of 132572491 is 194275231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132572491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132572411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3261 + ... + 16606.

It is an arithmetic number, because the mean of its divisors is an integer number (33149758).

Almost surely, 2^132572491 is an apocalyptic number.

132572491 is a deficient number, since it is larger than the sum of its proper divisors (26541).

132572491 is an equidigital number, since it uses as much as digits as its factorization.

132572491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26540.

The product of its digits is 15120, while the sum is 34.

The square root of 132572491 is about 11514.0128104844. The cubic root of 132572491 is about 509.8993662777.

The spelling of 132572491 in words is "one hundred thirty-two million, five hundred seventy-two thousand, four hundred ninety-one".