1312413656 has 16 divisors (see below), whose sum is σ = 2471524800. Its totient is φ = 653340384.

The previous prime is 1312413607. The next prime is 1312413659. The reversal of 1312413656 is 6563142131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312413659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356360 + ... + 360023.

It is an arithmetic number, because the mean of its divisors is an integer number (154470300).

Almost surely, 2^1312413656 is an apocalyptic number.

It is an amenable number.

1312413656 is a deficient number, since it is larger than the sum of its proper divisors (1159111144).

1312413656 is a wasteful number, since it uses less digits than its factorization.

1312413656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716618 (or 716614 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 1312413656 is about 36227.2501854612. The cubic root of 1312413656 is about 1094.8557752264.

Adding to 1312413656 its reverse (6563142131), we get a palindrome (7875555787).

The spelling of 1312413656 in words is "one billion, three hundred twelve million, four hundred thirteen thousand, six hundred fifty-six".