1315137525 has 96 divisors (see below), whose sum is σ = 2425344768. Its totient is φ = 624691200.

The previous prime is 1315137517. The next prime is 1315137529. The reversal of 1315137525 is 5257315131.

It is not a de Polignac number, because 1315137525 - 2³ = 1315137517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315137529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6675727 + ... + 6675923.

It is an arithmetic number, because the mean of its divisors is an integer number (25264008).

Almost surely, 2^1315137525 is an apocalyptic number.

1315137525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315137525 is a deficient number, since it is larger than the sum of its proper divisors (1110207243).

1315137525 is a wasteful number, since it uses less digits than its factorization.

1315137525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 426 counting only the distinct ones).

The product of its digits is 15750, while the sum is 33.

The square root of 1315137525 is about 36264.8248996186. The cubic root of 1315137525 is about 1095.6126968688.

The spelling of 1315137525 in words is "one billion, three hundred fifteen million, one hundred thirty-seven thousand, five hundred twenty-five".