1313643506 has 16 divisors (see below), whose sum is σ = 2255322624. Its totient is φ = 562149504.

The previous prime is 1313643497. The next prime is 1313643553. The reversal of 1313643506 is 6053463131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60290 + ... + 79133.

It is an arithmetic number, because the mean of its divisors is an integer number (140957664).

Almost surely, 2^1313643506 is an apocalyptic number.

1313643506 is a deficient number, since it is larger than the sum of its proper divisors (941679118).

1313643506 is a wasteful number, since it uses less digits than its factorization.

1313643506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140105.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 1313643506 is about 36244.2203116580. The cubic root of 1313643506 is about 1095.1976613352.

The spelling of 1313643506 in words is "one billion, three hundred thirteen million, six hundred forty-three thousand, five hundred six".