131319382594 has 4 divisors (see below), whose sum is σ = 196979073894. Its totient is φ = 65659691296.

The previous prime is 131319382583. The next prime is 131319382603. The reversal of 131319382594 is 495283913131.

It is a happy number.

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., 69847618369 + 61471764225 = 264287^2 + 247935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32829845647 + ... + 32829845650.

Almost surely, 2^131319382594 is an apocalyptic number.

131319382594 is a deficient number, since it is larger than the sum of its proper divisors (65659691300).

131319382594 is an equidigital number, since it uses as much as digits as its factorization.

131319382594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65659691299.

The product of its digits is 699840, while the sum is 49.

The spelling of 131319382594 in words is "one hundred thirty-one billion, three hundred nineteen million, three hundred eighty-two thousand, five hundred ninety-four".