12252409 has 8 divisors (see below), whose sum is σ = 13620992. Its totient is φ = 10944720.

The previous prime is 12252407. The next prime is 12252431. The reversal of 12252409 is 90425221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12252409 - 2¹ = 12252407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12252403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14799 + ... + 15604.

It is an arithmetic number, because the mean of its divisors is an integer number (1702624).

Almost surely, 2^12252409 is an apocalyptic number.

It is an amenable number.

12252409 is a deficient number, since it is larger than the sum of its proper divisors (1368583).

12252409 is a wasteful number, since it uses less digits than its factorization.

12252409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30447.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12252409 is about 3500.3441259396. The cubic root of 12252409 is about 230.5369245527.

The spelling of 12252409 in words is "twelve million, two hundred fifty-two thousand, four hundred nine".