124609689 has 12 divisors (see below), whose sum is σ = 181367472. Its totient is φ = 82438200.

The previous prime is 124609687. The next prime is 124609691. The reversal of 124609689 is 986906421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124609687) and next prime (124609691).

It is not a de Polignac number, because 124609689 - 2¹ = 124609687 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124609687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51667 + ... + 54024.

It is an arithmetic number, because the mean of its divisors is an integer number (15113956).

Almost surely, 2^124609689 is an apocalyptic number.

It is an amenable number.

124609689 is a deficient number, since it is larger than the sum of its proper divisors (56757783).

124609689 is a wasteful number, since it uses less digits than its factorization.

124609689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105828 (or 105825 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 124609689 is about 11162.8710016734. The cubic root of 124609689 is about 499.4790427289.

The spelling of 124609689 in words is "one hundred twenty-four million, six hundred nine thousand, six hundred eighty-nine".