12042449 has 2 divisors, whose sum is σ = 12042450. Its totient is φ = 12042448.

The previous prime is 12042439. The next prime is 12042461. The reversal of 12042449 is 94424021.

12042449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11833600 + 208849 = 3440^2 + 457^2 .

It is an emirp because it is prime and its reverse (94424021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12042449 is a prime.

It is not a weakly prime, because it can be changed into another prime (12042419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021224 + 6021225.

It is an arithmetic number, because the mean of its divisors is an integer number (6021225).

Almost surely, 2^12042449 is an apocalyptic number.

It is an amenable number.

12042449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042449 is an equidigital number, since it uses as much as digits as its factorization.

12042449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12042449 is about 3470.2231916694. The cubic root of 12042449 is about 229.2124862358.

The spelling of 12042449 in words is "twelve million, forty-two thousand, four hundred forty-nine".