120515015 has 4 divisors (see below), whose sum is σ = 144618024. Its totient is φ = 96412008.

The previous prime is 120514991. The next prime is 120515027. The reversal of 120515015 is 510515021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120515015 - 2¹⁶ = 120449479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12051497 + ... + 12051506.

It is an arithmetic number, because the mean of its divisors is an integer number (36154506).

Almost surely, 2^120515015 is an apocalyptic number.

120515015 is a deficient number, since it is larger than the sum of its proper divisors (24103009).

120515015 is an equidigital number, since it uses as much as digits as its factorization.

120515015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24103008.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 120515015 is about 10977.9330932558. The cubic root of 120515015 is about 493.9470390207.

The spelling of 120515015 in words is "one hundred twenty million, five hundred fifteen thousand, fifteen".