1315251051 has 16 divisors (see below), whose sum is σ = 1760714496. Its totient is φ = 873320096.

The previous prime is 1315251037. The next prime is 1315251059. The reversal of 1315251051 is 1501525131.

It is a cyclic number.

It is not a de Polignac number, because 1315251051 - 2¹¹ = 1315249003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315251059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337506 + ... + 1338488.

It is an arithmetic number, because the mean of its divisors is an integer number (110044656).

Almost surely, 2^1315251051 is an apocalyptic number.

1315251051 is a deficient number, since it is larger than the sum of its proper divisors (445463445).

1315251051 is an equidigital number, since it uses as much as digits as its factorization.

1315251051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1315251051 is about 36266.3901015803. The cubic root of 1315251051 is about 1095.6442213155.

Adding to 1315251051 its reverse (1501525131), we get a palindrome (2816776182).

The spelling of 1315251051 in words is "one billion, three hundred fifteen million, two hundred fifty-one thousand, fifty-one".