131473636 has 12 divisors (see below), whose sum is σ = 262947328. Its totient is φ = 56345832.

The previous prime is 131473627. The next prime is 131473649. The reversal of 131473636 is 636374131.

131473636 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 2347716 + ... + 2347771.

Almost surely, 2^131473636 is an apocalyptic number.

It is an amenable number.

131473636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131473636 is a wasteful number, since it uses less digits than its factorization.

131473636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695498 (or 4695496 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 131473636 is about 11466.1953585311. The cubic root of 131473636 is about 508.4866531221.

The spelling of 131473636 in words is "one hundred thirty-one million, four hundred seventy-three thousand, six hundred thirty-six".