103139844 has 24 divisors (see below), whose sum is σ = 240992640. Its totient is φ = 34332384.

The previous prime is 103139819. The next prime is 103139857. The reversal of 103139844 is 448931301.

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, 3717 + ... + 14835.

It is an arithmetic number, because the mean of its divisors is an integer number (10041360).

Almost surely, 2^103139844 is an apocalyptic number.

It is an amenable number.

103139844 is an abundant number, since it is smaller than the sum of its proper divisors (137852796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103139844 is a wasteful number, since it uses less digits than its factorization.

103139844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11899 (or 11897 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 103139844 is about 10155.7788475331. The cubic root of 103139844 is about 468.9668629970.

The spelling of 103139844 in words is "one hundred three million, one hundred thirty-nine thousand, eight hundred forty-four".