131496961 has 2 divisors, whose sum is σ = 131496962. Its totient is φ = 131496960.

The previous prime is 131496949. The next prime is 131496971. The reversal of 131496961 is 169694131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126900225 + 4596736 = 11265^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 131496961 - 2¹⁷ = 131365889 is a prime.

It is not a weakly prime, because it can be changed into another prime (131496931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65748480 + 65748481.

It is an arithmetic number, because the mean of its divisors is an integer number (65748481).

Almost surely, 2^131496961 is an apocalyptic number.

It is an amenable number.

131496961 is a deficient number, since it is larger than the sum of its proper divisors (1).

131496961 is an equidigital number, since it uses as much as digits as its factorization.

131496961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 131496961 is about 11467.2124337173. The cubic root of 131496961 is about 508.5167218878.

The spelling of 131496961 in words is "one hundred thirty-one million, four hundred ninety-six thousand, nine hundred sixty-one".