120139384 has 32 divisors (see below), whose sum is σ = 235837440. Its totient is φ = 57304800.

The previous prime is 120139361. The next prime is 120139403. The reversal of 120139384 is 483931021.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 14197 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (7369920).

Almost surely, 2^120139384 is an apocalyptic number.

It is an amenable number.

120139384 is a deficient number, since it is larger than the sum of its proper divisors (115698056).

120139384 is a wasteful number, since it uses less digits than its factorization.

120139384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931 (or 6927 counting only the distinct ones).

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

The square root of 120139384 is about 10960.8112838421. The cubic root of 120139384 is about 493.4333134756.

The spelling of 120139384 in words is "one hundred twenty million, one hundred thirty-nine thousand, three hundred eighty-four".