1315944475 has 12 divisors (see below), whose sum is σ = 1652428960. Its totient is φ = 1039428000.

The previous prime is 1315944467. The next prime is 1315944481. The reversal of 1315944475 is 5744495131.

It is a happy number.

It is not a de Polignac number, because 1315944475 - 2³ = 1315944467 is a prime.

It is a super-2 number, since 2×1315944475² = 3463419722566051250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331176 + ... + 335125.

Almost surely, 2^1315944475 is an apocalyptic number.

1315944475 is a deficient number, since it is larger than the sum of its proper divisors (336484485).

1315944475 is an equidigital number, since it uses as much as digits as its factorization.

1315944475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666390 (or 666385 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 1315944475 is about 36275.9489882760. The cubic root of 1315944475 is about 1095.8367352642.

The spelling of 1315944475 in words is "one billion, three hundred fifteen million, nine hundred forty-four thousand, four hundred seventy-five".