1315402479 has 18 divisors (see below), whose sum is σ = 1907660040. Its totient is φ = 873421056.

The previous prime is 1315402469. The next prime is 1315402481. The reversal of 1315402479 is 9742045131.

1315402479 is a `hidden beast` number, since 131 + 54 + 0 + 2 + 479 = 666.

It is not a de Polignac number, because 1315402479 - 2⁷ = 1315402351 is a prime.

It is a super-3 number, since 3×1315402479³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315402409) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2279439 + ... + 2280015.

Almost surely, 2^1315402479 is an apocalyptic number.

1315402479 is a deficient number, since it is larger than the sum of its proper divisors (592257561).

1315402479 is an frugal number, since it uses more digits than its factorization.

1315402479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1315402479 is about 36268.4777596193. The cubic root of 1315402479 is about 1095.6862677486.

The spelling of 1315402479 in words is "one billion, three hundred fifteen million, four hundred two thousand, four hundred seventy-nine".