124123289 has 2 divisors, whose sum is σ = 124123290. Its totient is φ = 124123288.

The previous prime is 124123283. The next prime is 124123301. The reversal of 124123289 is 982321421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83265625 + 40857664 = 9125^2 + 6392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124123289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124123283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62061644 + 62061645.

It is an arithmetic number, because the mean of its divisors is an integer number (62061645).

Almost surely, 2^124123289 is an apocalyptic number.

It is an amenable number.

124123289 is a deficient number, since it is larger than the sum of its proper divisors (1).

124123289 is an equidigital number, since it uses as much as digits as its factorization.

124123289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 124123289 is about 11141.0631898396. The cubic root of 124123289 is about 498.8283084225.

The spelling of 124123289 in words is "one hundred twenty-four million, one hundred twenty-three thousand, two hundred eighty-nine".