1313687632 has 10 divisors (see below), whose sum is σ = 2545269818. Its totient is φ = 656843808.

The previous prime is 1313687611. The next prime is 1313687659. The reversal of 1313687632 is 2367863131.

It can be written as a sum of positive squares in only one way, i.e., 1307256336 + 6431296 = 36156^2 + 2536^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41052723 + ... + 41052754.

Almost surely, 2^1313687632 is an apocalyptic number.

It is an amenable number.

1313687632 is a deficient number, since it is larger than the sum of its proper divisors (1231582186).

1313687632 is an equidigital number, since it uses as much as digits as its factorization.

1313687632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82105485 (or 82105479 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 1313687632 is about 36244.8290380849. The cubic root of 1313687632 is about 1095.2099239596.

The spelling of 1313687632 in words is "one billion, three hundred thirteen million, six hundred eighty-seven thousand, six hundred thirty-two".