125998124 has 12 divisors (see below), whose sum is σ = 251996304. Its totient is φ = 53999184.

The previous prime is 125998121. The next prime is 125998133. The reversal of 125998124 is 421899521.

125998124 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (125998121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2249939 + ... + 2249994.

It is an arithmetic number, because the mean of its divisors is an integer number (20999692).

Almost surely, 2^125998124 is an apocalyptic number.

125998124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

125998124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125998124 is a wasteful number, since it uses less digits than its factorization.

125998124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499944 (or 4499942 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 125998124 is about 11224.8885963291. Note that the first 3 decimals coincide. The cubic root of 125998124 is about 501.3273054029.

The spelling of 125998124 in words is "one hundred twenty-five million, nine hundred ninety-eight thousand, one hundred twenty-four".