131132369 has 4 divisors (see below), whose sum is σ = 131681280. Its totient is φ = 130583460.

The previous prime is 131132321. The next prime is 131132381. The reversal of 131132369 is 963231131.

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 a de Polignac number, because none of the positive numbers 2^k-131132369 is a prime.

It is a super-2 number, since 2×131132369² = 34391396399104322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131132399) 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, 274097 + ... + 274574.

It is an arithmetic number, because the mean of its divisors is an integer number (32920320).

Almost surely, 2^131132369 is an apocalyptic number.

It is an amenable number.

131132369 is a deficient number, since it is larger than the sum of its proper divisors (548911).

131132369 is an equidigital number, since it uses as much as digits as its factorization.

131132369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548910.

The product of its digits is 2916, while the sum is 29.

The square root of 131132369 is about 11451.3042488618. The cubic root of 131132369 is about 508.0463111623.

The spelling of 131132369 in words is "one hundred thirty-one million, one hundred thirty-two thousand, three hundred sixty-nine".