120138958 has 16 divisors (see below), whose sum is σ = 184477824. Its totient is φ = 58662520.

The previous prime is 120138943. The next prime is 120139007. The reversal of 120138958 is 859831021.

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, 11241 + ... + 19147.

It is an arithmetic number, because the mean of its divisors is an integer number (11529864).

Almost surely, 2^120138958 is an apocalyptic number.

120138958 is a deficient number, since it is larger than the sum of its proper divisors (64338866).

120138958 is a wasteful number, since it uses less digits than its factorization.

120138958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 120138958 is about 10960.7918509568. The cubic root of 120138958 is about 493.4327302562.

Adding to 120138958 its reverse (859831021), we get a palindrome (979969979).

The spelling of 120138958 in words is "one hundred twenty million, one hundred thirty-eight thousand, nine hundred fifty-eight".