1313130646 has 16 divisors (see below), whose sum is σ = 2018016000. Its totient is φ = 640496808.

The previous prime is 1313130619. The next prime is 1313130659. The reversal of 1313130646 is 6460313131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63055 + ... + 81253.

It is an arithmetic number, because the mean of its divisors is an integer number (126126000).

Almost surely, 2^1313130646 is an apocalyptic number.

1313130646 is a deficient number, since it is larger than the sum of its proper divisors (704885354).

1313130646 is a wasteful number, since it uses less digits than its factorization.

1313130646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19083.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1313130646 is about 36237.1445618995. The cubic root of 1313130646 is about 1095.0551172884.

Adding to 1313130646 its reverse (6460313131), we get a palindrome (7773443777).

The spelling of 1313130646 in words is "one billion, three hundred thirteen million, one hundred thirty thousand, six hundred forty-six".