124420447 has 2 divisors, whose sum is σ = 124420448. Its totient is φ = 124420446.

The previous prime is 124420441. The next prime is 124420451. The reversal of 124420447 is 744024421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124420447 - 2⁷ = 124420319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124420441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62210223 + 62210224.

It is an arithmetic number, because the mean of its divisors is an integer number (62210224).

Almost surely, 2^124420447 is an apocalyptic number.

124420447 is a deficient number, since it is larger than the sum of its proper divisors (1).

124420447 is an equidigital number, since it uses as much as digits as its factorization.

124420447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 124420447 is about 11154.3913773903. The cubic root of 124420447 is about 499.2260653350.

Adding to 124420447 its reverse (744024421), we get a palindrome (868444868).

The spelling of 124420447 in words is "one hundred twenty-four million, four hundred twenty thousand, four hundred forty-seven".