131165338 has 4 divisors (see below), whose sum is σ = 196748010. Its totient is φ = 65582668.

The previous prime is 131165327. The next prime is 131165357. The reversal of 131165338 is 833561131.

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., 103571329 + 27594009 = 10177^2 + 5253^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32791333 + ... + 32791336.

Almost surely, 2^131165338 is an apocalyptic number.

131165338 is a deficient number, since it is larger than the sum of its proper divisors (65582672).

131165338 is an equidigital number, since it uses as much as digits as its factorization.

131165338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65582671.

The product of its digits is 6480, while the sum is 31.

The square root of 131165338 is about 11452.7436887411. The cubic root of 131165338 is about 508.0888848747.

The spelling of 131165338 in words is "one hundred thirty-one million, one hundred sixty-five thousand, three hundred thirty-eight".