198148140 has 48 divisors (see below), whose sum is σ = 616462560. Its totient is φ = 52839360.

The previous prime is 198148133. The next prime is 198148177. The reversal of 198148140 is 41841891.

It is a super-3 number, since 3×198148140³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 198148095 and 198148104.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 182931 + ... + 184010.

It is an arithmetic number, because the mean of its divisors is an integer number (12842970).

Almost surely, 2^198148140 is an apocalyptic number.

198148140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198148140 is an abundant number, since it is smaller than the sum of its proper divisors (418314420).

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

198148140 is a wasteful number, since it uses less digits than its factorization.

198148140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366959 (or 366951 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 198148140 is about 14076.5102209319. The cubic root of 198148140 is about 582.9929907647.

The spelling of 198148140 in words is "one hundred ninety-eight million, one hundred forty-eight thousand, one hundred forty".