1311797589 has 16 divisors (see below), whose sum is σ = 1787572992. Its totient is φ = 855304128.

The previous prime is 1311797579. The next prime is 1311797609. The reversal of 1311797589 is 9857971131.

It is not a de Polignac number, because 1311797589 - 2⁴ = 1311797573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311797549) 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, 270147 + ... + 274959.

It is an arithmetic number, because the mean of its divisors is an integer number (111723312).

Almost surely, 2^1311797589 is an apocalyptic number.

It is an amenable number.

1311797589 is a deficient number, since it is larger than the sum of its proper divisors (475775403).

1311797589 is a wasteful number, since it uses less digits than its factorization.

1311797589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796.

The product of its digits is 476280, while the sum is 51.

The square root of 1311797589 is about 36218.7463753234. The cubic root of 1311797589 is about 1094.6844344101.

The spelling of 1311797589 in words is "one billion, three hundred eleven million, seven hundred ninety-seven thousand, five hundred eighty-nine".