1315662172 has 24 divisors (see below), whose sum is σ = 2525765760. Its totient is φ = 594683760.

The previous prime is 1315662143. The next prime is 1315662199. The reversal of 1315662172 is 2712665131.

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 7 ways as a sum of consecutive naturals, for example, 75648 + ... + 91399.

It is an arithmetic number, because the mean of its divisors is an integer number (105240240).

Almost surely, 2^1315662172 is an apocalyptic number.

It is an amenable number.

1315662172 is a deficient number, since it is larger than the sum of its proper divisors (1210103588).

1315662172 is a wasteful number, since it uses less digits than its factorization.

1315662172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167241 (or 167239 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 1315662172 is about 36272.0577304349. The cubic root of 1315662172 is about 1095.7583681983.

The spelling of 1315662172 in words is "one billion, three hundred fifteen million, six hundred sixty-two thousand, one hundred seventy-two".