1520996715 has 96 divisors (see below), whose sum is σ = 3202467840. Its totient is φ = 651912192.

The previous prime is 1520996671. The next prime is 1520996767. The reversal of 1520996715 is 5176990251.

It is not a de Polignac number, because 1520996715 - 2¹² = 1520992619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2350522 + ... + 2351168.

It is an arithmetic number, because the mean of its divisors is an integer number (33359040).

Almost surely, 2^1520996715 is an apocalyptic number.

1520996715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1520996715 is an abundant number, since it is smaller than the sum of its proper divisors (1681471125).

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

1520996715 is a wasteful number, since it uses less digits than its factorization.

1520996715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The square root of 1520996715 is about 38999.9578845926. The cubic root of 1520996715 is about 1150.0306771905.

The spelling of 1520996715 in words is "one billion, five hundred twenty million, nine hundred ninety-six thousand, seven hundred fifteen".