120038139 has 32 divisors (see below), whose sum is σ = 202789440. Its totient is φ = 69520896.

The previous prime is 120038137. The next prime is 120038153. The reversal of 120038139 is 931830021.

It is not a de Polignac number, because 120038139 - 2¹ = 120038137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (120038131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4092 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (6337170).

Almost surely, 2^120038139 is an apocalyptic number.

120038139 is a deficient number, since it is larger than the sum of its proper divisors (82751301).

120038139 is a wasteful number, since it uses less digits than its factorization.

120038139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20156 (or 20150 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 120038139 is about 10956.1918110263. The cubic root of 120038139 is about 493.2946642546.

The spelling of 120038139 in words is "one hundred twenty million, thirty-eight thousand, one hundred thirty-nine".