131161634 has 4 divisors (see below), whose sum is σ = 196742454. Its totient is φ = 65580816.

The previous prime is 131161627. The next prime is 131161649. The reversal of 131161634 is 436161131.

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

It can be written as a sum of positive squares in only one way, i.e., 129846025 + 1315609 = 11395^2 + 1147^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32790407 + ... + 32790410.

Almost surely, 2^131161634 is an apocalyptic number.

131161634 is a deficient number, since it is larger than the sum of its proper divisors (65580820).

131161634 is an equidigital number, since it uses as much as digits as its factorization.

131161634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65580819.

The product of its digits is 1296, while the sum is 26.

The square root of 131161634 is about 11452.5819796236. The cubic root of 131161634 is about 508.0841021606.

The spelling of 131161634 in words is "one hundred thirty-one million, one hundred sixty-one thousand, six hundred thirty-four".