1313257652 has 48 divisors (see below), whose sum is σ = 2664119808. Its totient is φ = 554820960.

The previous prime is 1313257601. The next prime is 1313257679. The reversal of 1313257652 is 2567523131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679127 + ... + 681057.

It is an arithmetic number, because the mean of its divisors is an integer number (55502496).

Almost surely, 2^1313257652 is an apocalyptic number.

It is an amenable number.

1313257652 is an abundant number, since it is smaller than the sum of its proper divisors (1350862156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313257652 is a wasteful number, since it uses less digits than its factorization.

1313257652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276 (or 2274 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 1313257652 is about 36238.8969478929. The cubic root of 1313257652 is about 1095.0904207283.

The spelling of 1313257652 in words is "one billion, three hundred thirteen million, two hundred fifty-seven thousand, six hundred fifty-two".