142234223 has 4 divisors (see below), whose sum is σ = 150600960. Its totient is φ = 133867488.

The previous prime is 142234217. The next prime is 142234243. The reversal of 142234223 is 322432241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322432241 = 41 ⋅7864201.

It is a cyclic number.

It is not a de Polignac number, because 142234223 - 2²⁰ = 141185647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142234243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4183343 + ... + 4183376.

It is an arithmetic number, because the mean of its divisors is an integer number (37650240).

Almost surely, 2^142234223 is an apocalyptic number.

142234223 is a deficient number, since it is larger than the sum of its proper divisors (8366737).

142234223 is an equidigital number, since it uses as much as digits as its factorization.

142234223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8366736.

The product of its digits is 2304, while the sum is 23.

The square root of 142234223 is about 11926.1990172896. The cubic root of 142234223 is about 521.9970334481.

Adding to 142234223 its reverse (322432241), we get a palindrome (464666464).

The spelling of 142234223 in words is "one hundred forty-two million, two hundred thirty-four thousand, two hundred twenty-three".