12252909 has 4 divisors (see below), whose sum is σ = 16337216. Its totient is φ = 8168604.

The previous prime is 12252901. The next prime is 12252913. The reversal of 12252909 is 90925221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12252909 - 2³ = 12252901 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 (12252901) 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 3 ways as a sum of consecutive naturals, for example, 2042149 + ... + 2042154.

It is an arithmetic number, because the mean of its divisors is an integer number (4084304).

Almost surely, 2^12252909 is an apocalyptic number.

It is an amenable number.

12252909 is a deficient number, since it is larger than the sum of its proper divisors (4084307).

12252909 is an equidigital number, since it uses as much as digits as its factorization.

12252909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084306.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12252909 is about 3500.4155467601. The cubic root of 12252909 is about 230.5400604501.

The spelling of 12252909 in words is "twelve million, two hundred fifty-two thousand, nine hundred nine".