124835989 has 2 divisors, whose sum is σ = 124835990. Its totient is φ = 124835988.

The previous prime is 124835957. The next prime is 124836029. The reversal of 124835989 is 989538421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109035364 + 15800625 = 10442^2 + 3975^2 .

It is an emirp because it is prime and its reverse (989538421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124835989 - 2⁵ = 124835957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124835189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62417994 + 62417995.

It is an arithmetic number, because the mean of its divisors is an integer number (62417995).

Almost surely, 2^124835989 is an apocalyptic number.

It is an amenable number.

124835989 is a deficient number, since it is larger than the sum of its proper divisors (1).

124835989 is an equidigital number, since it uses as much as digits as its factorization.

124835989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The square root of 124835989 is about 11173.0026850440. The cubic root of 124835989 is about 499.7812229538.

The spelling of 124835989 in words is "one hundred twenty-four million, eight hundred thirty-five thousand, nine hundred eighty-nine".