132571397 has 4 divisors (see below), whose sum is σ = 151510176. Its totient is φ = 113632620.

The previous prime is 132571357. The next prime is 132571421. The reversal of 132571397 is 793175231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132571397 - 2²⁶ = 65462533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132571397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132571357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9469379 + ... + 9469392.

It is an arithmetic number, because the mean of its divisors is an integer number (37877544).

Almost surely, 2^132571397 is an apocalyptic number.

It is an amenable number.

132571397 is a deficient number, since it is larger than the sum of its proper divisors (18938779).

132571397 is an equidigital number, since it uses as much as digits as its factorization.

132571397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18938778.

The product of its digits is 39690, while the sum is 38.

The square root of 132571397 is about 11513.9653030570. The cubic root of 132571397 is about 509.8979636955.

The spelling of 132571397 in words is "one hundred thirty-two million, five hundred seventy-one thousand, three hundred ninety-seven".