124420553 has 2 divisors, whose sum is σ = 124420554. Its totient is φ = 124420552.

The previous prime is 124420519. The next prime is 124420559. The reversal of 124420553 is 355024421.

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., 98644624 + 25775929 = 9932^2 + 5077^2 .

It is a cyclic number.

It is not a de Polignac number, because 124420553 - 2⁶ = 124420489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (124420559) 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, 62210276 + 62210277.

It is an arithmetic number, because the mean of its divisors is an integer number (62210277).

Almost surely, 2^124420553 is an apocalyptic number.

It is an amenable number.

124420553 is a deficient number, since it is larger than the sum of its proper divisors (1).

124420553 is an equidigital number, since it uses as much as digits as its factorization.

124420553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 124420553 is about 11154.3961288812. The cubic root of 124420553 is about 499.2262071069.

Adding to 124420553 its reverse (355024421), we get a palindrome (479444974).

The spelling of 124420553 in words is "one hundred twenty-four million, four hundred twenty thousand, five hundred fifty-three".