128998124 has 6 divisors (see below), whose sum is σ = 225746724. Its totient is φ = 64499060.

The previous prime is 128998123. The next prime is 128998139. The reversal of 128998124 is 421899821.

It is not an unprimeable number, because it can be changed into a prime (128998123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16124762 + ... + 16124769.

It is an arithmetic number, because the mean of its divisors is an integer number (37624454).

Almost surely, 2^128998124 is an apocalyptic number.

It is an amenable number.

128998124 is a deficient number, since it is larger than the sum of its proper divisors (96748600).

128998124 is a wasteful number, since it uses less digits than its factorization.

128998124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32249535 (or 32249533 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 128998124 is about 11357.7341050053. The cubic root of 128998124 is about 505.2749853538.

The spelling of 128998124 in words is "one hundred twenty-eight million, nine hundred ninety-eight thousand, one hundred twenty-four".