1315425957 has 8 divisors (see below), whose sum is σ = 1754068800. Its totient is φ = 876866880.

The previous prime is 1315425953. The next prime is 1315425971. The reversal of 1315425957 is 7595245131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1315425957 - 2² = 1315425953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315425953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52032 + ... + 73062.

It is an arithmetic number, because the mean of its divisors is an integer number (219258600).

Almost surely, 2^1315425957 is an apocalyptic number.

It is an amenable number.

1315425957 is a deficient number, since it is larger than the sum of its proper divisors (438642843).

1315425957 is a wasteful number, since it uses less digits than its factorization.

1315425957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41883.

The product of its digits is 189000, while the sum is 42.

The square root of 1315425957 is about 36268.8014276733. The cubic root of 1315425957 is about 1095.6927865061.

The spelling of 1315425957 in words is "one billion, three hundred fifteen million, four hundred twenty-five thousand, nine hundred fifty-seven".