12254909 has 4 divisors (see below), whose sum is σ = 12975804. Its totient is φ = 11534016.

The previous prime is 12254897. The next prime is 12254911. The reversal of 12254909 is 90945221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7546009 + 4708900 = 2747^2 + 2170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12254909 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 (12254969) 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, 360422 + ... + 360455.

It is an arithmetic number, because the mean of its divisors is an integer number (3243951).

Almost surely, 2^12254909 is an apocalyptic number.

It is an amenable number.

12254909 is a deficient number, since it is larger than the sum of its proper divisors (720895).

12254909 is an equidigital number, since it uses as much as digits as its factorization.

12254909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720894.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 12254909 is about 3500.7012154710. The cubic root of 12254909 is about 230.5526031869.

The spelling of 12254909 in words is "twelve million, two hundred fifty-four thousand, nine hundred nine".