120491515 has 16 divisors (see below), whose sum is σ = 147168000. Its totient is φ = 94688352.

The previous prime is 120491509. The next prime is 120491533. The reversal of 120491515 is 515194021.

It is a cyclic number.

It is not a de Polignac number, because 120491515 - 2⁷ = 120491387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81856 + ... + 83314.

It is an arithmetic number, because the mean of its divisors is an integer number (9198000).

Almost surely, 2^120491515 is an apocalyptic number.

120491515 is a deficient number, since it is larger than the sum of its proper divisors (26676485).

120491515 is a wasteful number, since it uses less digits than its factorization.

120491515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 120491515 is about 10976.8627120867. The cubic root of 120491515 is about 493.9149309607.

The spelling of 120491515 in words is "one hundred twenty million, four hundred ninety-one thousand, five hundred fifteen".