12123965 has 8 divisors (see below), whose sum is σ = 16627200. Its totient is φ = 8313552.

The previous prime is 12123959. The next prime is 12123977. The reversal of 12123965 is 56932121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12123965 - 2⁴ = 12123949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173165 + ... + 173234.

It is an arithmetic number, because the mean of its divisors is an integer number (2078400).

Almost surely, 2^12123965 is an apocalyptic number.

It is an amenable number.

12123965 is a deficient number, since it is larger than the sum of its proper divisors (4503235).

12123965 is an equidigital number, since it uses as much as digits as its factorization.

12123965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346411.

The product of its digits is 3240, while the sum is 29.

The square root of 12123965 is about 3481.9484487855. The cubic root of 12123965 is about 229.7285076334.

The spelling of 12123965 in words is "twelve million, one hundred twenty-three thousand, nine hundred sixty-five".