131677957 has 4 divisors (see below), whose sum is σ = 131790636. Its totient is φ = 131565280.

The previous prime is 131677927. The next prime is 131677963. The reversal of 131677957 is 759776131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121749156 + 9928801 = 11034^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 131677957 - 2¹⁹ = 131153669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131677907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54568 + ... + 56929.

It is an arithmetic number, because the mean of its divisors is an integer number (32947659).

Almost surely, 2^131677957 is an apocalyptic number.

It is an amenable number.

131677957 is a deficient number, since it is larger than the sum of its proper divisors (112679).

131677957 is a wasteful number, since it uses less digits than its factorization.

131677957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112678.

The product of its digits is 277830, while the sum is 46.

The square root of 131677957 is about 11475.1016117505. The cubic root of 131677957 is about 508.7499270143.

The spelling of 131677957 in words is "one hundred thirty-one million, six hundred seventy-seven thousand, nine hundred fifty-seven".