12965895 has 24 divisors (see below), whose sum is σ = 22787856. Its totient is φ = 6818688.

The previous prime is 12965879. The next prime is 12965921. The reversal of 12965895 is 59856921.

12965895 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12965895 - 2⁴ = 12965879 is a prime.

It is a super-2 number, since 2×12965895² = 336228866302050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12965895.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1312 + ... + 5258.

It is an arithmetic number, because the mean of its divisors is an integer number (949494).

Almost surely, 2^12965895 is an apocalyptic number.

12965895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12965895 is a deficient number, since it is larger than the sum of its proper divisors (9821961).

12965895 is a wasteful number, since it uses less digits than its factorization.

12965895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031 (or 4028 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 12965895 is about 3600.8186569168. The cubic root of 12965895 is about 234.9276674925.

The spelling of 12965895 in words is "twelve million, nine hundred sixty-five thousand, eight hundred ninety-five".