1315297525 has 6 divisors (see below), whose sum is σ = 1630968962. Its totient is φ = 1052238000.

The previous prime is 1315297519. The next prime is 1315297547. The reversal of 1315297525 is 5257925131.

It can be written as a sum of positive squares in 3 ways, for example, as 5870929 + 1309426596 = 2423^2 + 36186^2 .

It is not a de Polignac number, because 1315297525 - 2⁵ = 1315297493 is a prime.

It is a super-2 number, since 2×1315297525² = 3460015158542251250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26305926 + ... + 26305975.

Almost surely, 2^1315297525 is an apocalyptic number.

It is an amenable number.

1315297525 is a deficient number, since it is larger than the sum of its proper divisors (315671437).

1315297525 is an equidigital number, since it uses as much as digits as its factorization.

1315297525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52611911 (or 52611906 counting only the distinct ones).

The product of its digits is 94500, while the sum is 40.

The square root of 1315297525 is about 36267.0308269094. The cubic root of 1315297525 is about 1095.6571259164.

The spelling of 1315297525 in words is "one billion, three hundred fifteen million, two hundred ninety-seven thousand, five hundred twenty-five".