12131245 has 8 divisors (see below), whose sum is σ = 16637184. Its totient is φ = 8318544.

The previous prime is 12131219. The next prime is 12131257. The reversal of 12131245 is 54213121.

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 12131245 - 2¹¹ = 12129197 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, 173269 + ... + 173338.

It is an arithmetic number, because the mean of its divisors is an integer number (2079648).

Almost surely, 2^12131245 is an apocalyptic number.

It is an amenable number.

12131245 is a deficient number, since it is larger than the sum of its proper divisors (4505939).

12131245 is an equidigital number, since it uses as much as digits as its factorization.

12131245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346619.

The product of its digits is 240, while the sum is 19.

The square root of 12131245 is about 3482.9936836004. The cubic root of 12131245 is about 229.7744796374.

Adding to 12131245 its reverse (54213121), we get a palindrome (66344366).

The spelling of 12131245 in words is "twelve million, one hundred thirty-one thousand, two hundred forty-five".