131664137 has 8 divisors (see below), whose sum is σ = 146344320. Its totient is φ = 117435760.

The previous prime is 131664119. The next prime is 131664149. The reversal of 131664137 is 731466131.

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

It is a cyclic number.

It is not a de Polignac number, because 131664137 - 2⁶ = 131664073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131664107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112337 + ... + 113502.

It is an arithmetic number, because the mean of its divisors is an integer number (18293040).

Almost surely, 2^131664137 is an apocalyptic number.

It is an amenable number.

131664137 is a deficient number, since it is larger than the sum of its proper divisors (14680183).

131664137 is a wasteful number, since it uses less digits than its factorization.

131664137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225903.

The product of its digits is 9072, while the sum is 32.

The square root of 131664137 is about 11474.4994226328. The cubic root of 131664137 is about 508.7321281103.

The spelling of 131664137 in words is "one hundred thirty-one million, six hundred sixty-four thousand, one hundred thirty-seven".