12459965 has 12 divisors (see below), whose sum is σ = 17393436. Its totient is φ = 8543808.

The previous prime is 12459961. The next prime is 12459971. The reversal of 12459965 is 56995421.

12459965 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2181529 + 10278436 = 1477^2 + 3206^2 .

It is not a de Polignac number, because 12459965 - 2² = 12459961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12459961) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25184 + ... + 25673.

It is an arithmetic number, because the mean of its divisors is an integer number (1449453).

Almost surely, 2^12459965 is an apocalyptic number.

It is an amenable number.

12459965 is a deficient number, since it is larger than the sum of its proper divisors (4933471).

12459965 is an equidigital number, since it uses as much as digits as its factorization.

12459965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50876 (or 50869 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 12459965 is about 3529.8675612550. The cubic root of 12459965 is about 231.8314086799.

The spelling of 12459965 in words is "twelve million, four hundred fifty-nine thousand, nine hundred sixty-five".