139315915009 has 6 divisors (see below), whose sum is σ = 140257218710. Its totient is φ = 138380886816.

The previous prime is 139315915003. The next prime is 139315915033. The reversal of 139315915009 is 900519513931.

It can be written as a sum of positive squares in 3 ways, for example, as 116035984 + 139199879025 = 10772^2 + 373095^2 .

It is not a de Polignac number, because 139315915009 - 2⁹ = 139315914497 is a prime.

It is a super-2 number, since 2×139315915009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139315915009.

It is not an unprimeable number, because it can be changed into a prime (139315915003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3115404 + ... + 3159805.

Almost surely, 2^139315915009 is an apocalyptic number.

It is an amenable number.

139315915009 is a deficient number, since it is larger than the sum of its proper divisors (941303701).

139315915009 is an frugal number, since it uses more digits than its factorization.

139315915009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275507 (or 6275358 counting only the distinct ones).

The product of its (nonzero) digits is 164025, while the sum is 46.

The spelling of 139315915009 in words is "one hundred thirty-nine billion, three hundred fifteen million, nine hundred fifteen thousand, nine".