12250439 has 4 divisors (see below), whose sum is σ = 12283656. Its totient is φ = 12217224.

The previous prime is 12250397. The next prime is 12250463. The reversal of 12250439 is 93405221.

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

It is a cyclic number.

It is not a de Polignac number, because 12250439 - 2²⁰ = 11201863 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 (12250339) 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, 16049 + ... + 16794.

It is an arithmetic number, because the mean of its divisors is an integer number (3070914).

Almost surely, 2^12250439 is an apocalyptic number.

12250439 is a deficient number, since it is larger than the sum of its proper divisors (33217).

12250439 is an equidigital number, since it uses as much as digits as its factorization.

12250439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33216.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 12250439 is about 3500.0627137239. The cubic root of 12250439 is about 230.5245682864.

The spelling of 12250439 in words is "twelve million, two hundred fifty thousand, four hundred thirty-nine".