144222205 has 4 divisors (see below), whose sum is σ = 173066652. Its totient is φ = 115377760.

The previous prime is 144222193. The next prime is 144222251. The reversal of 144222205 is 502222441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502222441 = 7 ⋅71746063.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 100741369 = 6594^2 + 10037^2 .

It is not a de Polignac number, because 144222205 - 2⁵ = 144222173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14422216 + ... + 14422225.

It is an arithmetic number, because the mean of its divisors is an integer number (43266663).

Almost surely, 2^144222205 is an apocalyptic number.

It is an amenable number.

144222205 is a deficient number, since it is larger than the sum of its proper divisors (28844447).

144222205 is an equidigital number, since it uses as much as digits as its factorization.

144222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28844446.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 144222205 is about 12009.2549727283. The cubic root of 144222205 is about 524.4177429912.

Adding to 144222205 its reverse (502222441), we get a palindrome (646444646).

The spelling of 144222205 in words is "one hundred forty-four million, two hundred twenty-two thousand, two hundred five".