199144 has 32 divisors (see below), whose sum is σ = 426240. Its totient is φ = 86400.

The previous prime is 199109. The next prime is 199151. The reversal of 199144 is 441991.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2692 + ... + 2764.

It is an arithmetic number, because the mean of its divisors is an integer number (13320).

2¹⁹⁹¹⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213120).

199144 is an abundant number, since it is smaller than the sum of its proper divisors (227096).

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

199144 is a wasteful number, since it uses less digits than its factorization.

199144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 117 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 199144 is about 446.2555321786. The cubic root of 199144 is about 58.3968034780.

It can be divided in two parts, 199 and 144, that added together give a palindrome (343).

The spelling of 199144 in words is "one hundred ninety-nine thousand, one hundred forty-four".