103139830 has 16 divisors (see below), whose sum is σ = 185935824. Its totient is φ = 41192800.

The previous prime is 103139819. The next prime is 103139857. The reversal of 103139830 is 38931301.

It is a congruent number.

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, 721 + ... + 14380.

It is an arithmetic number, because the mean of its divisors is an integer number (11620989).

Almost surely, 2^103139830 is an apocalyptic number.

103139830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103139830 is a deficient number, since it is larger than the sum of its proper divisors (82795994).

103139830 is a wasteful number, since it uses less digits than its factorization.

103139830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15791.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 103139830 is about 10155.7781582703. The cubic root of 103139830 is about 468.9668417781.

The spelling of 103139830 in words is "one hundred three million, one hundred thirty-nine thousand, eight hundred thirty".