12565241 has 4 divisors (see below), whose sum is σ = 13531812. Its totient is φ = 11598672.

The previous prime is 12565219. The next prime is 12565243. The reversal of 12565241 is 14256521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14256521 = 43 ⋅331547.

It can be written as a sum of positive squares in 2 ways, for example, as 6786025 + 5779216 = 2605^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 12565241 - 2⁶ = 12565177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12565241.

It is not an unprimeable number, because it can be changed into a prime (12565243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483266 + ... + 483291.

It is an arithmetic number, because the mean of its divisors is an integer number (3382953).

Almost surely, 2^12565241 is an apocalyptic number.

It is an amenable number.

12565241 is a deficient number, since it is larger than the sum of its proper divisors (966571).

12565241 is an equidigital number, since it uses as much as digits as its factorization.

12565241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966570.

The product of its digits is 2400, while the sum is 26.

The square root of 12565241 is about 3544.7483690666. The cubic root of 12565241 is about 232.4825037900.

The spelling of 12565241 in words is "twelve million, five hundred sixty-five thousand, two hundred forty-one".