124043789 has 2 divisors, whose sum is σ = 124043790. Its totient is φ = 124043788.

The previous prime is 124043753. The next prime is 124043791. The reversal of 124043789 is 987340421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100200100 + 23843689 = 10010^2 + 4883^2 .

It is a cyclic number.

It is not a de Polignac number, because 124043789 - 2¹² = 124039693 is a prime.

Together with 124043791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124043189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62021894 + 62021895.

It is an arithmetic number, because the mean of its divisors is an integer number (62021895).

Almost surely, 2^124043789 is an apocalyptic number.

It is an amenable number.

124043789 is a deficient number, since it is larger than the sum of its proper divisors (1).

124043789 is an equidigital number, since it uses as much as digits as its factorization.

124043789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 124043789 is about 11137.4947362502. The cubic root of 124043789 is about 498.7217871282.

The spelling of 124043789 in words is "one hundred twenty-four million, forty-three thousand, seven hundred eighty-nine".