124100789 has 2 divisors, whose sum is σ = 124100790. Its totient is φ = 124100788.

The previous prime is 124100783. The next prime is 124100791. The reversal of 124100789 is 987001421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100500625 + 23600164 = 10025^2 + 4858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124100789 is a prime.

Together with 124100791, 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 (124100783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62050394 + 62050395.

It is an arithmetic number, because the mean of its divisors is an integer number (62050395).

Almost surely, 2^124100789 is an apocalyptic number.

It is an amenable number.

124100789 is a deficient number, since it is larger than the sum of its proper divisors (1).

124100789 is an equidigital number, since it uses as much as digits as its factorization.

124100789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 124100789 is about 11140.0533661199. The cubic root of 124100789 is about 498.7981655023.

The spelling of 124100789 in words is "one hundred twenty-four million, one hundred thousand, seven hundred eighty-nine".