12116965 has 36 divisors (see below), whose sum is σ = 17981676. Its totient is φ = 7814016.

The previous prime is 12116963. The next prime is 12116969. The reversal of 12116965 is 56961121.

It can be written as a sum of positive squares in 2 ways, for example, as 5731236 + 6385729 = 2394^2 + 2527^2 .

It is not a de Polignac number, because 12116965 - 2¹ = 12116963 is a prime.

It is a super-2 number, since 2×12116965² = 293641681622450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116963) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 88377 + ... + 88513.

It is an arithmetic number, because the mean of its divisors is an integer number (499491).

Almost surely, 2^12116965 is an apocalyptic number.

It is an amenable number.

12116965 is a deficient number, since it is larger than the sum of its proper divisors (5864711).

12116965 is a wasteful number, since it uses less digits than its factorization.

12116965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 168 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 12116965 is about 3480.9431193284. The cubic root of 12116965 is about 229.6842864252.

The spelling of 12116965 in words is "twelve million, one hundred sixteen thousand, nine hundred sixty-five".