142204223 has 24 divisors (see below), whose sum is σ = 172039680. Its totient is φ = 117074160.

The previous prime is 142204207. The next prime is 142204243. The reversal of 142204223 is 322402241.

It is not a de Polignac number, because 142204223 - 2⁴ = 142204207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142204195 and 142204204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142204243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271640 + ... + 272162.

It is an arithmetic number, because the mean of its divisors is an integer number (7168320).

Almost surely, 2^142204223 is an apocalyptic number.

142204223 is a deficient number, since it is larger than the sum of its proper divisors (29835457).

142204223 is a wasteful number, since it uses less digits than its factorization.

142204223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142204223 is about 11924.9412157880. The cubic root of 142204223 is about 521.9603310479.

Adding to 142204223 its reverse (322402241), we get a palindrome (464606464).

The spelling of 142204223 in words is "one hundred forty-two million, two hundred four thousand, two hundred twenty-three".