126424489 has 2 divisors, whose sum is σ = 126424490. Its totient is φ = 126424488.

The previous prime is 126424477. The next prime is 126424549. The reversal of 126424489 is 984424621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99301225 + 27123264 = 9965^2 + 5208^2 .

It is a cyclic number.

It is not a de Polignac number, because 126424489 - 2¹¹ = 126422441 is a prime.

It is a super-2 number, since 2×126424489² = 31966302837822242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126424439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63212244 + 63212245.

It is an arithmetic number, because the mean of its divisors is an integer number (63212245).

Almost surely, 2^126424489 is an apocalyptic number.

It is an amenable number.

126424489 is a deficient number, since it is larger than the sum of its proper divisors (1).

126424489 is an equidigital number, since it uses as much as digits as its factorization.

126424489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 40.

The square root of 126424489 is about 11243.8645046977. The cubic root of 126424489 is about 501.8921491772.

The spelling of 126424489 in words is "one hundred twenty-six million, four hundred twenty-four thousand, four hundred eighty-nine".