131668737 has 8 divisors (see below), whose sum is σ = 175614720. Its totient is φ = 87750960.

The previous prime is 131668717. The next prime is 131668739. The reversal of 131668737 is 737866131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131668737 - 2¹² = 131664641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131668739) by changing a digit.

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, 9187 + ... + 18647.

It is an arithmetic number, because the mean of its divisors is an integer number (21951840).

Almost surely, 2^131668737 is an apocalyptic number.

It is an amenable number.

131668737 is a deficient number, since it is larger than the sum of its proper divisors (43945983).

131668737 is an equidigital number, since it uses as much as digits as its factorization.

131668737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14103.

The product of its digits is 127008, while the sum is 42.

The square root of 131668737 is about 11474.6998653560. The cubic root of 131668737 is about 508.7380526305.

The spelling of 131668737 in words is "one hundred thirty-one million, six hundred sixty-eight thousand, seven hundred thirty-seven".