1518996313 has 4 divisors (see below), whose sum is σ = 1521532800. Its totient is φ = 1516459828.

The previous prime is 1518996293. The next prime is 1518996433. The reversal of 1518996313 is 3136998151.

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.

It is a cyclic number.

It is not a de Polignac number, because 1518996313 - 2²⁹ = 982125401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1518993313) 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, 1267345 + ... + 1268542.

It is an arithmetic number, because the mean of its divisors is an integer number (380383200).

Almost surely, 2^1518996313 is an apocalyptic number.

It is an amenable number.

1518996313 is a deficient number, since it is larger than the sum of its proper divisors (2536487).

1518996313 is an equidigital number, since it uses as much as digits as its factorization.

1518996313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536486.

The product of its digits is 174960, while the sum is 46.

The square root of 1518996313 is about 38974.3032394423. The cubic root of 1518996313 is about 1149.5262857993.

The spelling of 1518996313 in words is "one billion, five hundred eighteen million, nine hundred ninety-six thousand, three hundred thirteen".