12359965 has 4 divisors (see below), whose sum is σ = 14831964. Its totient is φ = 9887968.

The previous prime is 12359957. The next prime is 12359987. The reversal of 12359965 is 56995321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56995321 = 71 ⋅802751.

It can be written as a sum of positive squares in 2 ways, for example, as 5631129 + 6728836 = 2373^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 12359965 - 2³ = 12359957 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235992 + ... + 1236001.

It is an arithmetic number, because the mean of its divisors is an integer number (3707991).

Almost surely, 2^12359965 is an apocalyptic number.

It is an amenable number.

12359965 is a deficient number, since it is larger than the sum of its proper divisors (2471999).

12359965 is an equidigital number, since it uses as much as digits as its factorization.

12359965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471998.

The product of its digits is 72900, while the sum is 40.

The square root of 12359965 is about 3515.6741885448. The cubic root of 12359965 is about 231.2095385747.

The spelling of 12359965 in words is "twelve million, three hundred fifty-nine thousand, nine hundred sixty-five".