120478515 has 16 divisors (see below), whose sum is σ = 192919968. Its totient is φ = 64203776.

The previous prime is 120478481. The next prime is 120478537. The reversal of 120478515 is 515874021.

It is a cyclic number.

It is not a de Polignac number, because 120478515 - 2⁶ = 120478451 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, 23089 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (12057498).

Almost surely, 2^120478515 is an apocalyptic number.

120478515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120478515 is a deficient number, since it is larger than the sum of its proper divisors (72441453).

120478515 is a wasteful number, since it uses less digits than its factorization.

120478515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 120478515 is about 10976.2705414909. The cubic root of 120478515 is about 493.8971672616.

The spelling of 120478515 in words is "one hundred twenty million, four hundred seventy-eight thousand, five hundred fifteen".