120515988 has 24 divisors (see below), whose sum is σ = 282417408. Its totient is φ = 39998656.

The previous prime is 120515981. The next prime is 120515999. The reversal of 120515988 is 889515021.

It is a super-2 number, since 2×120515988² = 29048206727232288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120515981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18756 + ... + 24347.

It is an arithmetic number, because the mean of its divisors is an integer number (11767392).

Almost surely, 2^120515988 is an apocalyptic number.

It is an amenable number.

120515988 is an abundant number, since it is smaller than the sum of its proper divisors (161901420).

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

120515988 is a wasteful number, since it uses less digits than its factorization.

120515988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43343 (or 43341 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 120515988 is about 10977.9774093409. The cubic root of 120515988 is about 493.9483683410.

The spelling of 120515988 in words is "one hundred twenty million, five hundred fifteen thousand, nine hundred eighty-eight".