1315313252 has 24 divisors (see below), whose sum is σ = 2517540480. Its totient is φ = 596324960.

The previous prime is 1315313227. The next prime is 1315313261. The reversal of 1315313252 is 2523135131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21308 + ... + 55539.

It is an arithmetic number, because the mean of its divisors is an integer number (104897520).

Almost surely, 2^1315313252 is an apocalyptic number.

It is an amenable number.

1315313252 is a deficient number, since it is larger than the sum of its proper divisors (1202227228).

1315313252 is a wasteful number, since it uses less digits than its factorization.

1315313252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77251 (or 77249 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 1315313252 is about 36267.2476485327. The cubic root of 1315313252 is about 1095.6614928196.

Adding to 1315313252 its reverse (2523135131), we get a palindrome (3838448383).

The spelling of 1315313252 in words is "one billion, three hundred fifteen million, three hundred thirteen thousand, two hundred fifty-two".