199548144 has 40 divisors (see below), whose sum is σ = 572778320. Its totient is φ = 66515904.

The previous prime is 199548143. The next prime is 199548149. The reversal of 199548144 is 441845991.

It is a happy number.

199548144 is a `hidden beast` number, since 1 + 99 + 548 + 14 + 4 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 199548144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199548143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230527 + ... + 231390.

It is an arithmetic number, because the mean of its divisors is an integer number (14319458).

Almost surely, 2^199548144 is an apocalyptic number.

It is an amenable number.

199548144 is an abundant number, since it is smaller than the sum of its proper divisors (373230176).

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

199548144 is a wasteful number, since it uses less digits than its factorization.

199548144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461934 (or 461922 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 199548144 is about 14126.1510681431. The cubic root of 199548144 is about 584.3628039015.

The spelling of 199548144 in words is "one hundred ninety-nine million, five hundred forty-eight thousand, one hundred forty-four".