131162961 has 8 divisors (see below), whose sum is σ = 175616640. Its totient is φ = 87075632.

The previous prime is 131162957. The next prime is 131163001. The reversal of 131162961 is 169261131.

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 131162961 - 2² = 131162957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131162921) 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, 90750 + ... + 92183.

It is an arithmetic number, because the mean of its divisors is an integer number (21952080).

Almost surely, 2^131162961 is an apocalyptic number.

It is an amenable number.

131162961 is a deficient number, since it is larger than the sum of its proper divisors (44453679).

131162961 is a wasteful number, since it uses less digits than its factorization.

131162961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183175.

The product of its digits is 1944, while the sum is 30.

The square root of 131162961 is about 11452.6399140111. The cubic root of 131162961 is about 508.0858156325.

The spelling of 131162961 in words is "one hundred thirty-one million, one hundred sixty-two thousand, nine hundred sixty-one".