231596683139 has 4 divisors (see below), whose sum is σ = 231619671360. Its totient is φ = 231573694920.

The previous prime is 231596683133. The next prime is 231596683159. The reversal of 231596683139 is 931386695132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231596683139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231596683133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11478992 + ... + 11499149.

It is an arithmetic number, because the mean of its divisors is an integer number (57904917840).

Almost surely, 2^231596683139 is an apocalyptic number.

231596683139 is a deficient number, since it is larger than the sum of its proper divisors (22988221).

231596683139 is a wasteful number, since it uses less digits than its factorization.

231596683139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22988220.

The product of its digits is 6298560, while the sum is 56.

The spelling of 231596683139 in words is "two hundred thirty-one billion, five hundred ninety-six million, six hundred eighty-three thousand, one hundred thirty-nine".