1315007131 has 4 divisors (see below), whose sum is σ = 1316801872. Its totient is φ = 1313212392.

The previous prime is 1315007093. The next prime is 1315007143. The reversal of 1315007131 is 1317005131.

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

It is a cyclic number.

It is not a de Polignac number, because 1315007131 - 2⁷ = 1315007003 is a prime.

It is a super-2 number, since 2×1315007131² = 3458487509161702322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315007231) 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, 896271 + ... + 897736.

It is an arithmetic number, because the mean of its divisors is an integer number (329200468).

Almost surely, 2^1315007131 is an apocalyptic number.

1315007131 is a deficient number, since it is larger than the sum of its proper divisors (1794741).

1315007131 is an equidigital number, since it uses as much as digits as its factorization.

1315007131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794740.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 1315007131 is about 36263.0270523573. The cubic root of 1315007131 is about 1095.5764861960.

The spelling of 1315007131 in words is "one billion, three hundred fifteen million, seven thousand, one hundred thirty-one".