124123998 has 16 divisors (see below), whose sum is σ = 261313920. Its totient is φ = 39197016.

The previous prime is 124123981. The next prime is 124124027. The reversal of 124123998 is 899321421.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544290 + ... + 544517.

It is an arithmetic number, because the mean of its divisors is an integer number (16332120).

Almost surely, 2^124123998 is an apocalyptic number.

124123998 is an abundant number, since it is smaller than the sum of its proper divisors (137189922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124123998 is a wasteful number, since it uses less digits than its factorization.

124123998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088831.

The product of its digits is 31104, while the sum is 39.

The square root of 124123998 is about 11141.0950090195. The cubic root of 124123998 is about 498.8292582002.

The spelling of 124123998 in words is "one hundred twenty-four million, one hundred twenty-three thousand, nine hundred ninety-eight".