139604713931 has 2 divisors, whose sum is σ = 139604713932. Its totient is φ = 139604713930.

The previous prime is 139604713907. The next prime is 139604713993. The reversal of 139604713931 is 139317406931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139604713931 - 2¹⁸ = 139604451787 is a prime.

It is a super-2 number, since 2×139604713931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (139604713231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69802356965 + 69802356966.

It is an arithmetic number, because the mean of its divisors is an integer number (69802356966).

Almost surely, 2^139604713931 is an apocalyptic number.

139604713931 is a deficient number, since it is larger than the sum of its proper divisors (1).

139604713931 is an equidigital number, since it uses as much as digits as its factorization.

139604713931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 139604713931 in words is "one hundred thirty-nine billion, six hundred four million, seven hundred thirteen thousand, nine hundred thirty-one".