124554421 has 2 divisors, whose sum is σ = 124554422. Its totient is φ = 124554420.

The previous prime is 124554413. The next prime is 124554431. The reversal of 124554421 is 124455421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124211025 + 343396 = 11145^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 124554421 - 2³ = 124554413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124554421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124554401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62277210 + 62277211.

It is an arithmetic number, because the mean of its divisors is an integer number (62277211).

Almost surely, 2^124554421 is an apocalyptic number.

It is an amenable number.

124554421 is a deficient number, since it is larger than the sum of its proper divisors (1).

124554421 is an equidigital number, since it uses as much as digits as its factorization.

124554421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6400, while the sum is 28.

The square root of 124554421 is about 11160.3951990958. The cubic root of 124554421 is about 499.4051873431.

The spelling of 124554421 in words is "one hundred twenty-four million, five hundred fifty-four thousand, four hundred twenty-one".