1520116172 has 12 divisors (see below), whose sum is σ = 2662009896. Its totient is φ = 759541920.

The previous prime is 1520116163. The next prime is 1520116187. The reversal of 1520116172 is 2716110251.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122378 + ... + 134225.

It is an arithmetic number, because the mean of its divisors is an integer number (221834158).

Almost surely, 2^1520116172 is an apocalyptic number.

It is an amenable number.

1520116172 is a deficient number, since it is larger than the sum of its proper divisors (1141893724).

1520116172 is a wasteful number, since it uses less digits than its factorization.

1520116172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258088 (or 258086 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1520116172 is about 38988.6672252335. The cubic root of 1520116172 is about 1149.8087071862.

The spelling of 1520116172 in words is "one billion, five hundred twenty million, one hundred sixteen thousand, one hundred seventy-two".