198257125 has 32 divisors (see below), whose sum is σ = 281698560. Its totient is φ = 137896000.

The previous prime is 198257117. The next prime is 198257131. The reversal of 198257125 is 521752891.

It is not a de Polignac number, because 198257125 - 2³ = 198257117 is a prime.

It is a super-2 number, since 2×198257125² = 78611775226531250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28491 + ... + 34759.

It is an arithmetic number, because the mean of its divisors is an integer number (8803080).

Almost surely, 2^198257125 is an apocalyptic number.

It is an amenable number.

198257125 is a deficient number, since it is larger than the sum of its proper divisors (83441435).

198257125 is a wasteful number, since it uses less digits than its factorization.

198257125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318 (or 6308 counting only the distinct ones).

The product of its digits is 50400, while the sum is 40.

The square root of 198257125 is about 14080.3808542241. The cubic root of 198257125 is about 583.0998566778.

The spelling of 198257125 in words is "one hundred ninety-eight million, two hundred fifty-seven thousand, one hundred twenty-five".