195183198 has 96 divisors (see below), whose sum is σ = 515414016. Its totient is φ = 52170624.

The previous prime is 195183193. The next prime is 195183199. The reversal of 195183198 is 891381591.

195183198 is a `hidden beast` number, since 19 + 518 + 31 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195183193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135490 + ... + 136922.

It is an arithmetic number, because the mean of its divisors is an integer number (5368896).

Almost surely, 2^195183198 is an apocalyptic number.

195183198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 195183198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257707008).

195183198 is an abundant number, since it is smaller than the sum of its proper divisors (320230818).

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

195183198 is a wasteful number, since it uses less digits than its factorization.

195183198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1515 counting only the distinct ones).

The product of its digits is 77760, while the sum is 45.

The square root of 195183198 is about 13970.7980444927. The cubic root of 195183198 is about 580.0705403701.

The spelling of 195183198 in words is "one hundred ninety-five million, one hundred eighty-three thousand, one hundred ninety-eight".