142303223 has 2 divisors, whose sum is σ = 142303224. Its totient is φ = 142303222.

The previous prime is 142303219. The next prime is 142303247. The reversal of 142303223 is 322303241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142303223 - 2² = 142303219 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 142303195 and 142303204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142303283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71151611 + 71151612.

It is an arithmetic number, because the mean of its divisors is an integer number (71151612).

Almost surely, 2^142303223 is an apocalyptic number.

142303223 is a deficient number, since it is larger than the sum of its proper divisors (1).

142303223 is an equidigital number, since it uses as much as digits as its factorization.

142303223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 142303223 is about 11929.0914574413. The cubic root of 142303223 is about 522.0814293876.

Adding to 142303223 its reverse (322303241), we get a palindrome (464606464).

The spelling of 142303223 in words is "one hundred forty-two million, three hundred three thousand, two hundred twenty-three".