965798131 has 2 divisors, whose sum is σ = 965798132. Its totient is φ = 965798130.

The previous prime is 965798123. The next prime is 965798153. The reversal of 965798131 is 131897569.

It is a weak prime.

It is an emirp because it is prime and its reverse (131897569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 965798131 - 2³ = 965798123 is a prime.

It is a super-2 number, since 2×965798131² = 1865532059686186322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (965708131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482899065 + 482899066.

It is an arithmetic number, because the mean of its divisors is an integer number (482899066).

Almost surely, 2^965798131 is an apocalyptic number.

965798131 is a deficient number, since it is larger than the sum of its proper divisors (1).

965798131 is an equidigital number, since it uses as much as digits as its factorization.

965798131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 49.

The square root of 965798131 is about 31077.2928518557. The cubic root of 965798131 is about 988.4668753884.

The spelling of 965798131 in words is "nine hundred sixty-five million, seven hundred ninety-eight thousand, one hundred thirty-one".