1315313253 has 6 divisors (see below), whose sum is σ = 1899896934. Its totient is φ = 876875496.

The previous prime is 1315313227. The next prime is 1315313261. The reversal of 1315313253 is 3523135131.

It can be written as a sum of positive squares in only one way, i.e., 1280065284 + 35247969 = 35778^2 + 5937^2 .

It is not a de Polignac number, because 1315313253 - 2⁸ = 1315312997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315313053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73072950 + ... + 73072967.

It is an arithmetic number, because the mean of its divisors is an integer number (316649489).

Almost surely, 2^1315313253 is an apocalyptic number.

It is an amenable number.

1315313253 is a deficient number, since it is larger than the sum of its proper divisors (584583681).

1315313253 is a wasteful number, since it uses less digits than its factorization.

1315313253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146145923 (or 146145920 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 1315313253 is about 36267.2476623192. The cubic root of 1315313253 is about 1095.6614930973.

Adding to 1315313253 its reverse (3523135131), we get a palindrome (4838448384).

The spelling of 1315313253 in words is "one billion, three hundred fifteen million, three hundred thirteen thousand, two hundred fifty-three".