198155192 has 16 divisors (see below), whose sum is σ = 372099960. Its totient is φ = 98928544.

The previous prime is 198155141. The next prime is 198155197. The reversal of 198155192 is 291551891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198155197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12878 + ... + 23709.

Almost surely, 2^198155192 is an apocalyptic number.

It is an amenable number.

198155192 is a deficient number, since it is larger than the sum of its proper divisors (173944768).

198155192 is a wasteful number, since it uses less digits than its factorization.

198155192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37270 (or 37266 counting only the distinct ones).

The product of its digits is 32400, while the sum is 41.

The square root of 198155192 is about 14076.7607069240. The cubic root of 198155192 is about 582.9999068323. Note that the first 4 decimals are identical.

The spelling of 198155192 in words is "one hundred ninety-eight million, one hundred fifty-five thousand, one hundred ninety-two".