124126489 has 2 divisors, whose sum is σ = 124126490. Its totient is φ = 124126488.

The previous prime is 124126481. The next prime is 124126517. The reversal of 124126489 is 984621421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115670025 + 8456464 = 10755^2 + 2908^2 .

It is a cyclic number.

It is not a de Polignac number, because 124126489 - 2³ = 124126481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124126481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62063244 + 62063245.

It is an arithmetic number, because the mean of its divisors is an integer number (62063245).

Almost surely, 2^124126489 is an apocalyptic number.

It is an amenable number.

124126489 is a deficient number, since it is larger than the sum of its proper divisors (1).

124126489 is an equidigital number, since it uses as much as digits as its factorization.

124126489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 124126489 is about 11141.2068017787. The cubic root of 124126489 is about 498.8325951197.

It can be divided in two parts, 1241 and 26489, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 124126489 in words is "one hundred twenty-four million, one hundred twenty-six thousand, four hundred eighty-nine".