198146140 has 12 divisors (see below), whose sum is σ = 416106936. Its totient is φ = 79258448.

The previous prime is 198146087. The next prime is 198146159. The reversal of 198146140 is 41641891.

It is a super-3 number, since 3×198146140³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198146096 and 198146105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4953634 + ... + 4953673.

It is an arithmetic number, because the mean of its divisors is an integer number (34675578).

Almost surely, 2^198146140 is an apocalyptic number.

198146140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198146140 is an abundant number, since it is smaller than the sum of its proper divisors (217960796).

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

198146140 is a wasteful number, since it uses less digits than its factorization.

198146140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907316 (or 9907314 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 198146140 is about 14076.4391804178. The cubic root of 198146140 is about 582.9910292863.

The spelling of 198146140 in words is "one hundred ninety-eight million, one hundred forty-six thousand, one hundred forty".