124122289 has 2 divisors, whose sum is σ = 124122290. Its totient is φ = 124122288.

The previous prime is 124122281. The next prime is 124122311. The reversal of 124122289 is 982221421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 3122289 = 11000^2 + 1767^2 .

It is an emirp because it is prime and its reverse (982221421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124122289 - 2³ = 124122281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124122289.

It is not a weakly prime, because it can be changed into another prime (124122281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62061144 + 62061145.

It is an arithmetic number, because the mean of its divisors is an integer number (62061145).

Almost surely, 2^124122289 is an apocalyptic number.

It is an amenable number.

124122289 is a deficient number, since it is larger than the sum of its proper divisors (1).

124122289 is an equidigital number, since it uses as much as digits as its factorization.

124122289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 124122289 is about 11141.0183107291. The cubic root of 124122289 is about 498.8269688145.

The spelling of 124122289 in words is "one hundred twenty-four million, one hundred twenty-two thousand, two hundred eighty-nine".