124589221 has 2 divisors, whose sum is σ = 124589222. Its totient is φ = 124589220.

The previous prime is 124589219. The next prime is 124589261. The reversal of 124589221 is 122985421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65836996 + 58752225 = 8114^2 + 7665^2 .

It is a cyclic number.

It is not a de Polignac number, because 124589221 - 2¹ = 124589219 is a prime.

Together with 124589219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124589261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62294610 + 62294611.

It is an arithmetic number, because the mean of its divisors is an integer number (62294611).

Almost surely, 2^124589221 is an apocalyptic number.

It is an amenable number.

124589221 is a deficient number, since it is larger than the sum of its proper divisors (1).

124589221 is an equidigital number, since it uses as much as digits as its factorization.

124589221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 124589221 is about 11161.9541747850. The cubic root of 124589221 is about 499.4516936067.

The spelling of 124589221 in words is "one hundred twenty-four million, five hundred eighty-nine thousand, two hundred twenty-one".