139362991513 has 4 divisors (see below), whose sum is σ = 144168611940. Its totient is φ = 134557371088.

The previous prime is 139362991463. The next prime is 139362991517. The reversal of 139362991513 is 315199263931.

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 2 ways, for example, as 72255052809 + 67107938704 = 268803^2 + 259052^2 .

It is a cyclic number.

It is not a de Polignac number, because 139362991513 - 2³⁷ = 1924038041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139362991517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2402810170 + ... + 2402810227.

It is an arithmetic number, because the mean of its divisors is an integer number (36042152985).

Almost surely, 2^139362991513 is an apocalyptic number.

It is an amenable number.

139362991513 is a deficient number, since it is larger than the sum of its proper divisors (4805620427).

139362991513 is an equidigital number, since it uses as much as digits as its factorization.

139362991513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805620426.

The product of its digits is 1180980, while the sum is 52.

The spelling of 139362991513 in words is "one hundred thirty-nine billion, three hundred sixty-two million, nine hundred ninety-one thousand, five hundred thirteen".