1313912961 has 16 divisors (see below), whose sum is σ = 1954624320. Its totient is φ = 872303040.

The previous prime is 1313912933. The next prime is 1313912969. The reversal of 1313912961 is 1692193131.

It is not a de Polignac number, because 1313912961 - 2⁹ = 1313912449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313912969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94455 + ... + 107468.

It is an arithmetic number, because the mean of its divisors is an integer number (122164020).

Almost surely, 2^1313912961 is an apocalyptic number.

It is an amenable number.

1313912961 is a deficient number, since it is larger than the sum of its proper divisors (640711359).

1313912961 is a wasteful number, since it uses less digits than its factorization.

1313912961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202173 (or 202167 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 1313912961 is about 36247.9373344195. The cubic root of 1313912961 is about 1095.2725386540.

The spelling of 1313912961 in words is "one billion, three hundred thirteen million, nine hundred twelve thousand, nine hundred sixty-one".