126436447 has 2 divisors, whose sum is σ = 126436448. Its totient is φ = 126436446.

The previous prime is 126436417. The next prime is 126436487. The reversal of 126436447 is 744634621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126436447 - 2⁷ = 126436319 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126436417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63218223 + 63218224.

It is an arithmetic number, because the mean of its divisors is an integer number (63218224).

Almost surely, 2^126436447 is an apocalyptic number.

126436447 is a deficient number, since it is larger than the sum of its proper divisors (1).

126436447 is an equidigital number, since it uses as much as digits as its factorization.

126436447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 37.

The square root of 126436447 is about 11244.3962487988. The cubic root of 126436447 is about 501.9079726862.

The spelling of 126436447 in words is "one hundred twenty-six million, four hundred thirty-six thousand, four hundred forty-seven".