965923531 has 2 divisors, whose sum is σ = 965923532. Its totient is φ = 965923530.

The previous prime is 965923507. The next prime is 965923549. The reversal of 965923531 is 135329569.

It is a strong prime.

It is an emirp because it is prime and its reverse (135329569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 965923531 - 2²¹ = 963826379 is a prime.

It is a super-2 number, since 2×965923531² = 1866016535479015922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (965923031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482961765 + 482961766.

It is an arithmetic number, because the mean of its divisors is an integer number (482961766).

Almost surely, 2^965923531 is an apocalyptic number.

965923531 is a deficient number, since it is larger than the sum of its proper divisors (1).

965923531 is an equidigital number, since it uses as much as digits as its factorization.

965923531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 218700, while the sum is 43.

The square root of 965923531 is about 31079.3103366210. The cubic root of 965923531 is about 988.5096546462.

The spelling of 965923531 in words is "nine hundred sixty-five million, nine hundred twenty-three thousand, five hundred thirty-one".