126226609 has 2 divisors, whose sum is σ = 126226610. Its totient is φ = 126226608.

The previous prime is 126226601. The next prime is 126226613. The reversal of 126226609 is 906622621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93702400 + 32524209 = 9680^2 + 5703^2 .

It is a cyclic number.

It is not a de Polignac number, because 126226609 - 2³ = 126226601 is a prime.

It is not a weakly prime, because it can be changed into another prime (126226601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63113304 + 63113305.

It is an arithmetic number, because the mean of its divisors is an integer number (63113305).

Almost surely, 2^126226609 is an apocalyptic number.

It is an amenable number.

126226609 is a deficient number, since it is larger than the sum of its proper divisors (1).

126226609 is an equidigital number, since it uses as much as digits as its factorization.

126226609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 126226609 is about 11235.0615930666. The cubic root of 126226609 is about 501.6301580601.

The spelling of 126226609 in words is "one hundred twenty-six million, two hundred twenty-six thousand, six hundred nine".