139359055499 has 4 divisors (see below), whose sum is σ = 139379457336. Its totient is φ = 139338653664.

The previous prime is 139359055399. The next prime is 139359055531. The reversal of 139359055499 is 994550953931.

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

It is a cyclic number.

It is not a de Polignac number, because 139359055499 - 2⁸ = 139359055243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139359055399) 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, 10190669 + ... + 10204334.

It is an arithmetic number, because the mean of its divisors is an integer number (34844864334).

Almost surely, 2^139359055499 is an apocalyptic number.

139359055499 is a deficient number, since it is larger than the sum of its proper divisors (20401837).

139359055499 is an equidigital number, since it uses as much as digits as its factorization.

139359055499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20401836.

The product of its (nonzero) digits is 29524500, while the sum is 62.

The spelling of 139359055499 in words is "one hundred thirty-nine billion, three hundred fifty-nine million, fifty-five thousand, four hundred ninety-nine".