139303915 has 16 divisors (see below), whose sum is σ = 176382720. Its totient is φ = 105325920.

The previous prime is 139303909. The next prime is 139303949. The reversal of 139303915 is 519303931.

It is not a de Polignac number, because 139303915 - 2⁵ = 139303883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44760 + ... + 47770.

It is an arithmetic number, because the mean of its divisors is an integer number (11023920).

Almost surely, 2^139303915 is an apocalyptic number.

139303915 is a deficient number, since it is larger than the sum of its proper divisors (37078805).

139303915 is a wasteful number, since it uses less digits than its factorization.

139303915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522.

The product of its (nonzero) digits is 10935, while the sum is 34.

The square root of 139303915 is about 11802.7079519914. The cubic root of 139303915 is about 518.3874044242.

The spelling of 139303915 in words is "one hundred thirty-nine million, three hundred three thousand, nine hundred fifteen".