144221194 has 16 divisors (see below), whose sum is σ = 233188200. Its totient is φ = 66502080.

The previous prime is 144221179. The next prime is 144221213. The reversal of 144221194 is 491122441.

It can be written as a sum of positive squares in 4 ways, for example, as 117440569 + 26780625 = 10837^2 + 5175^2 .

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, 38484 + ... + 42064.

Almost surely, 2^144221194 is an apocalyptic number.

144221194 is a deficient number, since it is larger than the sum of its proper divisors (88967006).

144221194 is a wasteful number, since it uses less digits than its factorization.

144221194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145.

The product of its digits is 2304, while the sum is 28.

The square root of 144221194 is about 12009.2128801183. The cubic root of 144221194 is about 524.4165175960.

The spelling of 144221194 in words is "one hundred forty-four million, two hundred twenty-one thousand, one hundred ninety-four".