1315313135 has 4 divisors (see below), whose sum is σ = 1578375768. Its totient is φ = 1052250504.

The previous prime is 1315313123. The next prime is 1315313147. The reversal of 1315313135 is 5313135131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1315313123) and next prime (1315313147).

It is a cyclic number.

It is not a de Polignac number, because 1315313135 - 2⁴ = 1315313119 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 131531309 + ... + 131531318.

It is an arithmetic number, because the mean of its divisors is an integer number (394593942).

Almost surely, 2^1315313135 is an apocalyptic number.

1315313135 is a deficient number, since it is larger than the sum of its proper divisors (263062633).

1315313135 is an equidigital number, since it uses as much as digits as its factorization.

1315313135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263062632.

The product of its digits is 2025, while the sum is 26.

The square root of 1315313135 is about 36267.2460355070. The cubic root of 1315313135 is about 1095.6614603324.

Adding to 1315313135 its reverse (5313135131), we get a palindrome (6628448266).

The spelling of 1315313135 in words is "one billion, three hundred fifteen million, three hundred thirteen thousand, one hundred thirty-five".