131661364 has 12 divisors (see below), whose sum is σ = 230666688. Its totient is φ = 65756600.

The previous prime is 131661353. The next prime is 131661377. The reversal of 131661364 is 463166131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14422 + ... + 21709.

It is an arithmetic number, because the mean of its divisors is an integer number (19222224).

Almost surely, 2^131661364 is an apocalyptic number.

It is an amenable number.

131661364 is a deficient number, since it is larger than the sum of its proper divisors (99005324).

131661364 is a wasteful number, since it uses less digits than its factorization.

131661364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37046 (or 37044 counting only the distinct ones).

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

The square root of 131661364 is about 11474.3785888387. The cubic root of 131661364 is about 508.7285565882.

The spelling of 131661364 in words is "one hundred thirty-one million, six hundred sixty-one thousand, three hundred sixty-four".