144222251 has 2 divisors, whose sum is σ = 144222252. Its totient is φ = 144222250.

The previous prime is 144222193. The next prime is 144222277. The reversal of 144222251 is 152222441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144222251 - 2⁶ = 144222187 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144222751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72111125 + 72111126.

It is an arithmetic number, because the mean of its divisors is an integer number (72111126).

Almost surely, 2^144222251 is an apocalyptic number.

144222251 is a deficient number, since it is larger than the sum of its proper divisors (1).

144222251 is an equidigital number, since it uses as much as digits as its factorization.

144222251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 23.

The square root of 144222251 is about 12009.2568879178. The cubic root of 144222251 is about 524.4177987459.

Adding to 144222251 its reverse (152222441), we get a palindrome (296444692).

The spelling of 144222251 in words is "one hundred forty-four million, two hundred twenty-two thousand, two hundred fifty-one".