139338015 has 16 divisors (see below), whose sum is σ = 223231488. Its totient is φ = 74216736.

The previous prime is 139338013. The next prime is 139338037. The reversal of 139338015 is 510833931.

139338015 = T₂₄₆₆ + T₂₄₆₇ + ... + T₂₅₁₀.

It is not a de Polignac number, because 139338015 - 2¹ = 139338013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139338013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6702 + ... + 17988.

It is an arithmetic number, because the mean of its divisors is an integer number (13951968).

Almost surely, 2^139338015 is an apocalyptic number.

139338015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139338015 is a deficient number, since it is larger than the sum of its proper divisors (83893473).

139338015 is a wasteful number, since it uses less digits than its factorization.

139338015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 139338015 is about 11804.1524473382. The cubic root of 139338015 is about 518.4296994028.

The spelling of 139338015 in words is "one hundred thirty-nine million, three hundred thirty-eight thousand, fifteen".