125868198 has 16 divisors (see below), whose sum is σ = 264985920. Its totient is φ = 39747816.

The previous prime is 125868157. The next prime is 125868199. The reversal of 125868198 is 891868521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125868199) 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 7 ways as a sum of consecutive naturals, for example, 551940 + ... + 552167.

It is an arithmetic number, because the mean of its divisors is an integer number (16561620).

Almost surely, 2^125868198 is an apocalyptic number.

125868198 is an abundant number, since it is smaller than the sum of its proper divisors (139117722).

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

125868198 is a wasteful number, since it uses less digits than its factorization.

125868198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104131.

The product of its digits is 276480, while the sum is 48.

The square root of 125868198 is about 11219.0996964997. The cubic root of 125868198 is about 501.1549275640.

The spelling of 125868198 in words is "one hundred twenty-five million, eight hundred sixty-eight thousand, one hundred ninety-eight".