104042139 has 16 divisors (see below), whose sum is σ = 140169600. Its totient is φ = 68642496.

The previous prime is 104042123. The next prime is 104042143. The reversal of 104042139 is 931240401.

It is not a de Polignac number, because 104042139 - 2⁴ = 104042123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104044139) 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, 167772 + ... + 168390.

It is an arithmetic number, because the mean of its divisors is an integer number (8760600).

Almost surely, 2^104042139 is an apocalyptic number.

104042139 is a deficient number, since it is larger than the sum of its proper divisors (36127461).

104042139 is a wasteful number, since it uses less digits than its factorization.

104042139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 104042139 is about 10200.1048524023. The cubic root of 104042139 is about 470.3304436424.

The spelling of 104042139 in words is "one hundred four million, forty-two thousand, one hundred thirty-nine".