142224223 has 2 divisors, whose sum is σ = 142224224. Its totient is φ = 142224222.

The previous prime is 142224191. The next prime is 142224233. The reversal of 142224223 is 322422241.

It is a strong prime.

It is an emirp because it is prime and its reverse (322422241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142224223 - 2⁵ = 142224191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142224194 and 142224203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142224233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71112111 + 71112112.

It is an arithmetic number, because the mean of its divisors is an integer number (71112112).

Almost surely, 2^142224223 is an apocalyptic number.

142224223 is a deficient number, since it is larger than the sum of its proper divisors (1).

142224223 is an equidigital number, since it uses as much as digits as its factorization.

142224223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 22.

The square root of 142224223 is about 11925.7797648623. The cubic root of 142224223 is about 521.9847998882.

Adding to 142224223 its reverse (322422241), we get a palindrome (464646464).

The spelling of 142224223 in words is "one hundred forty-two million, two hundred twenty-four thousand, two hundred twenty-three".