965131983 has 32 divisors (see below), whose sum is σ = 1453636800. Its totient is φ = 632798208.

The previous prime is 965131969. The next prime is 965131991. The reversal of 965131983 is 389131569.

It is not a de Polignac number, because 965131983 - 2¹⁸ = 964869839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965131913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416833 + ... + 419141.

It is an arithmetic number, because the mean of its divisors is an integer number (45426150).

Almost surely, 2^965131983 is an apocalyptic number.

965131983 is a deficient number, since it is larger than the sum of its proper divisors (488504817).

965131983 is a wasteful number, since it uses less digits than its factorization.

965131983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568 (or 2562 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 965131983 is about 31066.5734029358. The cubic root of 965131983 is about 988.2395619507.

The spelling of 965131983 in words is "nine hundred sixty-five million, one hundred thirty-one thousand, nine hundred eighty-three".