1313561699 has 16 divisors (see below), whose sum is σ = 1404112320. Its totient is φ = 1226709120.

The previous prime is 1313561693. The next prime is 1313561719. The reversal of 1313561699 is 9961653131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1313561699 - 2¹² = 1313557603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313561693) 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, 103109 + ... + 115145.

It is an arithmetic number, because the mean of its divisors is an integer number (87757020).

Almost surely, 2^1313561699 is an apocalyptic number.

1313561699 is a deficient number, since it is larger than the sum of its proper divisors (90550621).

1313561699 is a wasteful number, since it uses less digits than its factorization.

1313561699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12190.

The product of its digits is 131220, while the sum is 44.

The square root of 1313561699 is about 36243.0917417375. The cubic root of 1313561699 is about 1095.1749264266.

The spelling of 1313561699 in words is "one billion, three hundred thirteen million, five hundred sixty-one thousand, six hundred ninety-nine".