139870115 has 32 divisors (see below), whose sum is σ = 220285440. Its totient is φ = 82598400.

The previous prime is 139870097. The next prime is 139870123. The reversal of 139870115 is 511078931.

It is not a de Polignac number, because 139870115 - 2¹⁶ = 139804579 is a prime.

It is a super-2 number, since 2×139870115² = 39127298140226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2246 + ... + 16875.

It is an arithmetic number, because the mean of its divisors is an integer number (6883920).

Almost surely, 2^139870115 is an apocalyptic number.

139870115 is a deficient number, since it is larger than the sum of its proper divisors (80415325).

139870115 is a wasteful number, since it uses less digits than its factorization.

139870115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19163.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 139870115 is about 11826.6696495675. The cubic root of 139870115 is about 519.0887826207.

The spelling of 139870115 in words is "one hundred thirty-nine million, eight hundred seventy thousand, one hundred fifteen".