142244223 has 32 divisors (see below), whose sum is σ = 211756032. Its totient is φ = 84211200.

The previous prime is 142244197. The next prime is 142244227. The reversal of 142244223 is 322442241.

It is not a de Polignac number, because 142244223 - 2⁸ = 142243967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142244193 and 142244202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142244227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329818 + ... + 330248.

It is an arithmetic number, because the mean of its divisors is an integer number (6617376).

Almost surely, 2^142244223 is an apocalyptic number.

142244223 is a deficient number, since it is larger than the sum of its proper divisors (69511809).

142244223 is a wasteful number, since it uses less digits than its factorization.

142244223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its digits is 3072, while the sum is 24.

The square root of 142244223 is about 11926.6182549791. The cubic root of 142244223 is about 522.0092664346.

Adding to 142244223 its reverse (322442241), we get a palindrome (464686464).

It can be divided in two parts, 1 and 42244223, that added together give a palindrome (42244224).

The spelling of 142244223 in words is "one hundred forty-two million, two hundred forty-four thousand, two hundred twenty-three".