124438609 has 2 divisors, whose sum is σ = 124438610. Its totient is φ = 124438608.

The previous prime is 124438577. The next prime is 124438627. The reversal of 124438609 is 906834421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 39337984 = 9225^2 + 6272^2 .

It is a cyclic number.

It is not a de Polignac number, because 124438609 - 2⁵ = 124438577 is a prime.

It is not a weakly prime, because it can be changed into another prime (124438009) 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, 62219304 + 62219305.

It is an arithmetic number, because the mean of its divisors is an integer number (62219305).

Almost surely, 2^124438609 is an apocalyptic number.

It is an amenable number.

124438609 is a deficient number, since it is larger than the sum of its proper divisors (1).

124438609 is an equidigital number, since it uses as much as digits as its factorization.

124438609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 124438609 is about 11155.2054665076. The cubic root of 124438609 is about 499.2503552940.

The spelling of 124438609 in words is "one hundred twenty-four million, four hundred thirty-eight thousand, six hundred nine".