1313636506 has 16 divisors (see below), whose sum is σ = 2425175424. Its totient is φ = 519680304.

The previous prime is 1313636491. The next prime is 1313636507. The reversal of 1313636506 is 6056363131.

It is not an unprimeable number, because it can be changed into a prime (1313636507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3608710 + ... + 3609073.

It is an arithmetic number, because the mean of its divisors is an integer number (151573464).

Almost surely, 2^1313636506 is an apocalyptic number.

1313636506 is a deficient number, since it is larger than the sum of its proper divisors (1111538918).

1313636506 is a wasteful number, since it uses less digits than its factorization.

1313636506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217805.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 1313636506 is about 36244.1237444086. The cubic root of 1313636506 is about 1095.1957160085.

Adding to 1313636506 its reverse (6056363131), we get a palindrome (7369999637).

The spelling of 1313636506 in words is "one billion, three hundred thirteen million, six hundred thirty-six thousand, five hundred six".