103139842 has 16 divisors (see below), whose sum is σ = 167223672. Its totient is φ = 47427840.

The previous prime is 103139819. The next prime is 103139857. The reversal of 103139842 is 248931301.

It can be written as a sum of positive squares in 4 ways, for example, as 20711601 + 82428241 = 4551^2 + 9079^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 14362.

Almost surely, 2^103139842 is an apocalyptic number.

103139842 is a deficient number, since it is larger than the sum of its proper divisors (64083830).

103139842 is a wasteful number, since it uses less digits than its factorization.

103139842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14613.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 103139842 is about 10155.7787490670. The cubic root of 103139842 is about 468.9668599658.

The spelling of 103139842 in words is "one hundred three million, one hundred thirty-nine thousand, eight hundred forty-two".