131664136 has 32 divisors (see below), whose sum is σ = 250488000. Its totient is φ = 64875456.

The previous prime is 131664119. The next prime is 131664149. The reversal of 131664136 is 631466131.

It is a junction number, because it is equal to n+sod(n) for n = 131664098 and 131664107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185350 + ... + 186058.

It is an arithmetic number, because the mean of its divisors is an integer number (7827750).

Almost surely, 2^131664136 is an apocalyptic number.

It is an amenable number.

131664136 is a deficient number, since it is larger than the sum of its proper divisors (118823864).

131664136 is a wasteful number, since it uses less digits than its factorization.

131664136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1017 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 131664136 is about 11474.4993790579. The cubic root of 131664136 is about 508.7321268223.

The spelling of 131664136 in words is "one hundred thirty-one million, six hundred sixty-four thousand, one hundred thirty-six".