1313898646 has 8 divisors (see below), whose sum is σ = 1971005400. Its totient is φ = 656896848.

The previous prime is 1313898643. The next prime is 1313898647. The reversal of 1313898646 is 6468983131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1313898646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313898643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25330 + ... + 57178.

It is an arithmetic number, because the mean of its divisors is an integer number (246375675).

Almost surely, 2^1313898646 is an apocalyptic number.

1313898646 is a deficient number, since it is larger than the sum of its proper divisors (657106754).

1313898646 is a wasteful number, since it uses less digits than its factorization.

1313898646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52478.

The product of its digits is 746496, while the sum is 49.

The square root of 1313898646 is about 36247.7398743701. The cubic root of 1313898646 is about 1095.2685609975.

The spelling of 1313898646 in words is "one billion, three hundred thirteen million, eight hundred ninety-eight thousand, six hundred forty-six".