126464609 has 2 divisors, whose sum is σ = 126464610. Its totient is φ = 126464608.

The previous prime is 126464579. The next prime is 126464629. The reversal of 126464609 is 906464621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 28058209 = 9920^2 + 5297^2 .

It is a cyclic number.

It is not a de Polignac number, because 126464609 - 2⁸ = 126464353 is a prime.

It is not a weakly prime, because it can be changed into another prime (126464629) 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, 63232304 + 63232305.

It is an arithmetic number, because the mean of its divisors is an integer number (63232305).

Almost surely, 2^126464609 is an apocalyptic number.

It is an amenable number.

126464609 is a deficient number, since it is larger than the sum of its proper divisors (1).

126464609 is an equidigital number, since it uses as much as digits as its factorization.

126464609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 126464609 is about 11245.6484472884. The cubic root of 126464609 is about 501.9452343127.

The spelling of 126464609 in words is "one hundred twenty-six million, four hundred sixty-four thousand, six hundred nine".