126384449 has 2 divisors, whose sum is σ = 126384450. Its totient is φ = 126384448.

The previous prime is 126384359. The next prime is 126384487. The reversal of 126384449 is 944483621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65044225 + 61340224 = 8065^2 + 7832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126384449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126384649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63192224 + 63192225.

It is an arithmetic number, because the mean of its divisors is an integer number (63192225).

Almost surely, 2^126384449 is an apocalyptic number.

It is an amenable number.

126384449 is a deficient number, since it is larger than the sum of its proper divisors (1).

126384449 is an equidigital number, since it uses as much as digits as its factorization.

126384449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 126384449 is about 11242.0838370829. The cubic root of 126384449 is about 501.8391586960.

The spelling of 126384449 in words is "one hundred twenty-six million, three hundred eighty-four thousand, four hundred forty-nine".