139188115 has 12 divisors (see below), whose sum is σ = 183591072. Its totient is φ = 101227280.

The previous prime is 139188107. The next prime is 139188131. The reversal of 139188115 is 511881931.

It is not a de Polignac number, because 139188115 - 2³ = 139188107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114427 + ... + 115636.

It is an arithmetic number, because the mean of its divisors is an integer number (15299256).

Almost surely, 2^139188115 is an apocalyptic number.

139188115 is a deficient number, since it is larger than the sum of its proper divisors (44402957).

139188115 is a wasteful number, since it uses less digits than its factorization.

139188115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230090 (or 230079 counting only the distinct ones).

The product of its digits is 8640, while the sum is 37.

The square root of 139188115 is about 11797.8012782043. The cubic root of 139188115 is about 518.2437236029.

The spelling of 139188115 in words is "one hundred thirty-nine million, one hundred eighty-eight thousand, one hundred fifteen".