1315359361 has 4 divisors (see below), whose sum is σ = 1350909652. Its totient is φ = 1279809072.

The previous prime is 1315359329. The next prime is 1315359407. The reversal of 1315359361 is 1639535131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 941323761 + 374035600 = 30681^2 + 19340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315359361 - 2⁵ = 1315359329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 35550253 = 1315359361 / (1 + 3 + 1 + 5 + 3 + 5 + 9 + 3 + 6 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315359361.

It is not an unprimeable number, because it can be changed into a prime (1315359161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17775090 + ... + 17775163.

It is an arithmetic number, because the mean of its divisors is an integer number (337727413).

Almost surely, 2^1315359361 is an apocalyptic number.

It is an amenable number.

1315359361 is a deficient number, since it is larger than the sum of its proper divisors (35550291).

1315359361 is an equidigital number, since it uses as much as digits as its factorization.

1315359361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35550290.

The product of its digits is 36450, while the sum is 37.

The square root of 1315359361 is about 36267.8833267121. The cubic root of 1315359361 is about 1095.6742956672.

The spelling of 1315359361 in words is "one billion, three hundred fifteen million, three hundred fifty-nine thousand, three hundred sixty-one".