120390515 has 64 divisors (see below), whose sum is σ = 185131008. Its totient is φ = 73267200.

The previous prime is 120390493. The next prime is 120390551. The reversal of 120390515 is 515093021.

It is not a de Polignac number, because 120390515 - 2⁶ = 120390451 is a prime.

It is a super-2 number, since 2×120390515² = 28987752203930450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1125092 + ... + 1125198.

It is an arithmetic number, because the mean of its divisors is an integer number (2892672).

Almost surely, 2^120390515 is an apocalyptic number.

120390515 is a deficient number, since it is larger than the sum of its proper divisors (64740493).

120390515 is a wasteful number, since it uses less digits than its factorization.

120390515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 120390515 is about 10972.2611616749. The cubic root of 120390515 is about 493.7768870687.

The spelling of 120390515 in words is "one hundred twenty million, three hundred ninety thousand, five hundred fifteen".