124221589 has 2 divisors, whose sum is σ = 124221590. Its totient is φ = 124221588.

The previous prime is 124221577. The next prime is 124221593. The reversal of 124221589 is 985122421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117288900 + 6932689 = 10830^2 + 2633^2 .

It is an emirp because it is prime and its reverse (985122421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124221589 - 2⁹ = 124221077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124221089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62110794 + 62110795.

It is an arithmetic number, because the mean of its divisors is an integer number (62110795).

Almost surely, 2^124221589 is an apocalyptic number.

It is an amenable number.

124221589 is a deficient number, since it is larger than the sum of its proper divisors (1).

124221589 is an equidigital number, since it uses as much as digits as its factorization.

124221589 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 124221589 is about 11145.4739244233. The cubic root of 124221589 is about 498.9599567869.

The spelling of 124221589 in words is "one hundred twenty-four million, two hundred twenty-one thousand, five hundred eighty-nine".