144222206 has 4 divisors (see below), whose sum is σ = 216333312. Its totient is φ = 72111102.

The previous prime is 144222193. The next prime is 144222251. The reversal of 144222206 is 602222441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602222441 = 887 ⋅678943.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36055550 + ... + 36055553.

It is an arithmetic number, because the mean of its divisors is an integer number (54083328).

Almost surely, 2^144222206 is an apocalyptic number.

144222206 is a deficient number, since it is larger than the sum of its proper divisors (72111106).

144222206 is an equidigital number, since it uses as much as digits as its factorization.

144222206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72111105.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 144222206 is about 12009.2550143629. The cubic root of 144222206 is about 524.4177442032.

Adding to 144222206 its reverse (602222441), we get a palindrome (746444647).

The spelling of 144222206 in words is "one hundred forty-four million, two hundred twenty-two thousand, two hundred six".