131660137 has 12 divisors (see below), whose sum is σ = 152112000. Its totient is φ = 111632256.

The previous prime is 131660129. The next prime is 131660141. The reversal of 131660137 is 731066131.

It is not a de Polignac number, because 131660137 - 2³ = 131660129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131660147) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 64864 + ... + 66862.

It is an arithmetic number, because the mean of its divisors is an integer number (12676000).

Almost surely, 2^131660137 is an apocalyptic number.

It is an amenable number.

131660137 is a deficient number, since it is larger than the sum of its proper divisors (20451863).

131660137 is an frugal number, since it uses more digits than its factorization.

131660137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 131660137 is about 11474.3251217664. The cubic root of 131660137 is about 508.7269762414.

The spelling of 131660137 in words is "one hundred thirty-one million, six hundred sixty thousand, one hundred thirty-seven".