1313567128 has 32 divisors (see below), whose sum is σ = 2625408000. Its totient is φ = 614334240.

The previous prime is 1313567119. The next prime is 1313567159. The reversal of 1313567128 is 8217653131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42688 + ... + 66703.

It is an arithmetic number, because the mean of its divisors is an integer number (82044000).

Almost surely, 2^1313567128 is an apocalyptic number.

It is an amenable number.

1313567128 is a deficient number, since it is larger than the sum of its proper divisors (1311840872).

1313567128 is a wasteful number, since it uses less digits than its factorization.

1313567128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109495 (or 109491 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 1313567128 is about 36243.1666386920. The cubic root of 1313567128 is about 1095.1764352243.

The spelling of 1313567128 in words is "one billion, three hundred thirteen million, five hundred sixty-seven thousand, one hundred twenty-eight".