132131391 has 12 divisors (see below), whose sum is σ = 204938712. Its totient is φ = 75503568.

The previous prime is 132131381. The next prime is 132131401. The reversal of 132131391 is 193131231.

It is an interprime number because it is at equal distance from previous prime (132131381) and next prime (132131401).

It is not a de Polignac number, because 132131391 - 2²⁶ = 65022527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132131381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449280 + ... + 449573.

It is an arithmetic number, because the mean of its divisors is an integer number (17078226).

Almost surely, 2^132131391 is an apocalyptic number.

132131391 is a deficient number, since it is larger than the sum of its proper divisors (72807321).

132131391 is an equidigital number, since it uses as much as digits as its factorization.

132131391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898870 (or 898863 counting only the distinct ones).

The product of its digits is 486, while the sum is 24.

The square root of 132131391 is about 11494.8419301876. The cubic root of 132131391 is about 509.3332193565. Note that the first 3 decimals are identical.

The spelling of 132131391 in words is "one hundred thirty-two million, one hundred thirty-one thousand, three hundred ninety-one".