1520336313 has 12 divisors (see below), whose sum is σ = 2198184768. Its totient is φ = 1012568280.

The previous prime is 1520336309. The next prime is 1520336393. The reversal of 1520336313 is 3136330251.

It is a happy number.

1520336313 is a `hidden beast` number, since 1 + 5 + 20 + 3 + 3 + 631 + 3 = 666.

It is not a de Polignac number, because 1520336313 - 2² = 1520336309 is a prime.

It is a super-2 number, since 2×1520336313² = 4622845009252867938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520336303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72645 + ... + 91202.

It is an arithmetic number, because the mean of its divisors is an integer number (183182064).

Almost surely, 2^1520336313 is an apocalyptic number.

It is an amenable number.

1520336313 is a deficient number, since it is larger than the sum of its proper divisors (677848455).

1520336313 is a wasteful number, since it uses less digits than its factorization.

1520336313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164884 (or 164881 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 1520336313 is about 38991.4902639025. The cubic root of 1520336313 is about 1149.8642090453.

Adding to 1520336313 its reverse (3136330251), we get a palindrome (4656666564).

The spelling of 1520336313 in words is "one billion, five hundred twenty million, three hundred thirty-six thousand, three hundred thirteen".