12137449 has 2 divisors, whose sum is σ = 12137450. Its totient is φ = 12137448.

The previous prime is 12137441. The next prime is 12137459. The reversal of 12137449 is 94473121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7155625 + 4981824 = 2675^2 + 2232^2 .

It is a cyclic number.

It is not a de Polignac number, because 12137449 - 2³ = 12137441 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12137449.

It is not a weakly prime, because it can be changed into another prime (12137441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6068724 + 6068725.

It is an arithmetic number, because the mean of its divisors is an integer number (6068725).

Almost surely, 2^12137449 is an apocalyptic number.

It is an amenable number.

12137449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12137449 is an equidigital number, since it uses as much as digits as its factorization.

12137449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 12137449 is about 3483.8841829200. The cubic root of 12137449 is about 229.8136423651.

The spelling of 12137449 in words is "twelve million, one hundred thirty-seven thousand, four hundred forty-nine".