131352636 has 24 divisors (see below), whose sum is σ = 307071184. Its totient is φ = 43701120.

The previous prime is 131352587. The next prime is 131352649. The reversal of 131352636 is 636253131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3625 + ... + 16608.

Almost surely, 2^131352636 is an apocalyptic number.

It is an amenable number.

131352636 is an abundant number, since it is smaller than the sum of its proper divisors (175718548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131352636 is a wasteful number, since it uses less digits than its factorization.

131352636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20781 (or 20779 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

The square root of 131352636 is about 11460.9177642979. The cubic root of 131352636 is about 508.3306122820.

The spelling of 131352636 in words is "one hundred thirty-one million, three hundred fifty-two thousand, six hundred thirty-six".