1313552361 has 32 divisors (see below), whose sum is σ = 1988582400. Its totient is φ = 763945280.

The previous prime is 1313552329. The next prime is 1313552399. The reversal of 1313552361 is 1632553131.

It is a cyclic number.

It is not a de Polignac number, because 1313552361 - 2⁵ = 1313552329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313550361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155710 + ... + 163928.

It is an arithmetic number, because the mean of its divisors is an integer number (62143200).

Almost surely, 2^1313552361 is an apocalyptic number.

1313552361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1313552361 is a deficient number, since it is larger than the sum of its proper divisors (675030039).

1313552361 is a wasteful number, since it uses less digits than its factorization.

1313552361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8429.

The product of its digits is 8100, while the sum is 30.

The square root of 1313552361 is about 36242.9629169581. The cubic root of 1313552361 is about 1095.1723312516.

The spelling of 1313552361 in words is "one billion, three hundred thirteen million, five hundred fifty-two thousand, three hundred sixty-one".