12239245 has 8 divisors (see below), whose sum is σ = 14741784. Its totient is φ = 9754944.

The previous prime is 12239221. The next prime is 12239251. The reversal of 12239245 is 54293221.

12239245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 9162729 = 1754^2 + 3027^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12239245 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3034 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (1842723).

Almost surely, 2^12239245 is an apocalyptic number.

It is an amenable number.

12239245 is a deficient number, since it is larger than the sum of its proper divisors (2502539).

12239245 is an equidigital number, since it uses as much as digits as its factorization.

12239245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9119.

The product of its digits is 4320, while the sum is 28.

The square root of 12239245 is about 3498.4632340501. The cubic root of 12239245 is about 230.4543319353.

The spelling of 12239245 in words is "twelve million, two hundred thirty-nine thousand, two hundred forty-five".