131353631 has 8 divisors (see below), whose sum is σ = 139638000. Its totient is φ = 123206400.

The previous prime is 131353613. The next prime is 131353637. The reversal of 131353631 is 136353131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131353631 - 2²⁶ = 64244767 is a prime.

It is a super-2 number, since 2×131353631² = 34507552753768322, which contains 22 as substring.

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 131353631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131353637) 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, 32306 + ... + 36143.

It is an arithmetic number, because the mean of its divisors is an integer number (17454750).

Almost surely, 2^131353631 is an apocalyptic number.

131353631 is a deficient number, since it is larger than the sum of its proper divisors (8284369).

131353631 is a wasteful number, since it uses less digits than its factorization.

131353631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68569.

The product of its digits is 2430, while the sum is 26.

The square root of 131353631 is about 11460.9611726068. The cubic root of 131353631 is about 508.3318958184.

The spelling of 131353631 in words is "one hundred thirty-one million, three hundred fifty-three thousand, six hundred thirty-one".