124989039 has 24 divisors (see below), whose sum is σ = 209244672. Its totient is φ = 70413840.

The previous prime is 124989017. The next prime is 124989041. The reversal of 124989039 is 930989421.

It is not a de Polignac number, because 124989039 - 2⁹ = 124988527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124988985 and 124989003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124989079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9499 + ... + 18444.

It is an arithmetic number, because the mean of its divisors is an integer number (8718528).

Almost surely, 2^124989039 is an apocalyptic number.

124989039 is a deficient number, since it is larger than the sum of its proper divisors (84255633).

124989039 is a wasteful number, since it uses less digits than its factorization.

124989039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28027 (or 28024 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 124989039 is about 11179.8496859305. The cubic root of 124989039 is about 499.9853849061.

The spelling of 124989039 in words is "one hundred twenty-four million, nine hundred eighty-nine thousand, thirty-nine".