254221223 has 2 divisors, whose sum is σ = 254221224. Its totient is φ = 254221222.

The previous prime is 254221171. The next prime is 254221237. The reversal of 254221223 is 322122452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254221223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254221243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127110611 + 127110612.

It is an arithmetic number, because the mean of its divisors is an integer number (127110612).

Almost surely, 2^254221223 is an apocalyptic number.

254221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

254221223 is an equidigital number, since it uses as much as digits as its factorization.

254221223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 23.

The square root of 254221223 is about 15944.3163227528. The cubic root of 254221223 is about 633.4863594833.

Adding to 254221223 its reverse (322122452), we get a palindrome (576343675).

The spelling of 254221223 in words is "two hundred fifty-four million, two hundred twenty-one thousand, two hundred twenty-three".