124999889 has 16 divisors (see below), whose sum is σ = 148176000. Its totient is φ = 103173504.

The previous prime is 124999829. The next prime is 124999891. The reversal of 124999889 is 988999421.

It is not a de Polignac number, because 124999889 - 2¹⁶ = 124934353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124999829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118637 + ... + 119685.

It is an arithmetic number, because the mean of its divisors is an integer number (9261000).

Almost surely, 2^124999889 is an apocalyptic number.

It is an amenable number.

124999889 is a deficient number, since it is larger than the sum of its proper divisors (23176111).

124999889 is a wasteful number, since it uses less digits than its factorization.

124999889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its digits is 3359232, while the sum is 59.

The square root of 124999889 is about 11180.3349234269. The cubic root of 124999889 is about 499.9998520000. Note that the first 3 decimals are identical.

The spelling of 124999889 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, eight hundred eighty-nine".