124988889 has 16 divisors (see below), whose sum is σ = 168547392. Its totient is φ = 82384128.

The previous prime is 124988881. The next prime is 124988971. The reversal of 124988889 is 988889421.

It is not a de Polignac number, because 124988889 - 2³ = 124988881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124988881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113389 + ... + 114485.

It is an arithmetic number, because the mean of its divisors is an integer number (10534212).

Almost surely, 2^124988889 is an apocalyptic number.

It is an amenable number.

124988889 is a deficient number, since it is larger than the sum of its proper divisors (43558503).

124988889 is a wasteful number, since it uses less digits than its factorization.

124988889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

The product of its digits is 2654208, while the sum is 57.

The square root of 124988889 is about 11179.8429774304. The cubic root of 124988889 is about 499.9851848944.

The spelling of 124988889 in words is "one hundred twenty-four million, nine hundred eighty-eight thousand, eight hundred eighty-nine".