1315315425 has 48 divisors (see below), whose sum is σ = 2222000640. Its totient is φ = 686400000.

The previous prime is 1315315373. The next prime is 1315315427. The reversal of 1315315425 is 5245135131.

It is not a de Polignac number, because 1315315425 - 2²¹ = 1313218273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1315315392 and 1315315401.

It is not an unprimeable number, because it can be changed into a prime (1315315427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 673200 + ... + 675150.

It is an arithmetic number, because the mean of its divisors is an integer number (46291680).

Almost surely, 2^1315315425 is an apocalyptic number.

1315315425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315315425 is a deficient number, since it is larger than the sum of its proper divisors (906685215).

1315315425 is a wasteful number, since it uses less digits than its factorization.

1315315425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154 (or 2149 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 1315315425 is about 36267.2776066801. The cubic root of 1315315425 is about 1095.6620961920.

The spelling of 1315315425 in words is "one billion, three hundred fifteen million, three hundred fifteen thousand, four hundred twenty-five".