12231245 has 16 divisors (see below), whose sum is σ = 16737840. Its totient is φ = 8500224.

The previous prime is 12231229. The next prime is 12231253. The reversal of 12231245 is 54213221.

12231245 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 8 ways, for example, as 1485961 + 10745284 = 1219^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231245 - 2⁴ = 12231229 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4430 + ... + 6639.

It is an arithmetic number, because the mean of its divisors is an integer number (1046115).

Almost surely, 2^12231245 is an apocalyptic number.

It is an amenable number.

12231245 is a deficient number, since it is larger than the sum of its proper divisors (4506595).

12231245 is a wasteful number, since it uses less digits than its factorization.

12231245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104.

The product of its digits is 480, while the sum is 20.

The square root of 12231245 is about 3497.3196879896. The cubic root of 12231245 is about 230.4041099788.

Adding to 12231245 its reverse (54213221), we get a palindrome (66444466).

The spelling of 12231245 in words is "twelve million, two hundred thirty-one thousand, two hundred forty-five".