125665198 has 8 divisors (see below), whose sum is σ = 188639208. Its totient is φ = 62785464.

The previous prime is 125665181. The next prime is 125665217. The reversal of 125665198 is 891566521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20136 + ... + 25627.

It is an arithmetic number, because the mean of its divisors is an integer number (23579901).

Almost surely, 2^125665198 is an apocalyptic number.

125665198 is a deficient number, since it is larger than the sum of its proper divisors (62974010).

125665198 is a wasteful number, since it uses less digits than its factorization.

125665198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47138.

The product of its digits is 129600, while the sum is 43.

The square root of 125665198 is about 11210.0489740233. The cubic root of 125665198 is about 500.8853620096.

The spelling of 125665198 in words is "one hundred twenty-five million, six hundred sixty-five thousand, one hundred ninety-eight".