131369331 has 8 divisors (see below), whose sum is σ = 176965264. Its totient is φ = 86676480.

The previous prime is 131369327. The next prime is 131369347. The reversal of 131369331 is 133963131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131369331 - 2² = 131369327 is a prime.

It is a super-2 number, since 2×131369331² = 34515802254775122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131369321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225430 + ... + 226011.

It is an arithmetic number, because the mean of its divisors is an integer number (22120658).

Almost surely, 2^131369331 is an apocalyptic number.

131369331 is a deficient number, since it is larger than the sum of its proper divisors (45595933).

131369331 is an equidigital number, since it uses as much as digits as its factorization.

131369331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451541.

The product of its digits is 4374, while the sum is 30.

The square root of 131369331 is about 11461.6460859686. The cubic root of 131369331 is about 508.3521477464.

The spelling of 131369331 in words is "one hundred thirty-one million, three hundred sixty-nine thousand, three hundred thirty-one".