1513254313 has 4 divisors (see below), whose sum is σ = 1513335168. Its totient is φ = 1513173460.

The previous prime is 1513254277. The next prime is 1513254317. The reversal of 1513254313 is 3134523151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1513254313 - 2⁹ = 1513253801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513254317) 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, 3708 + ... + 55138.

It is an arithmetic number, because the mean of its divisors is an integer number (378333792).

Almost surely, 2^1513254313 is an apocalyptic number.

It is an amenable number.

1513254313 is a deficient number, since it is larger than the sum of its proper divisors (80855).

1513254313 is an equidigital number, since it uses as much as digits as its factorization.

1513254313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80854.

The product of its digits is 5400, while the sum is 28.

The square root of 1513254313 is about 38900.5695716657. The cubic root of 1513254313 is about 1148.0760048037.

Adding to 1513254313 its reverse (3134523151), we get a palindrome (4647777464).

The spelling of 1513254313 in words is "one billion, five hundred thirteen million, two hundred fifty-four thousand, three hundred thirteen".