142344223 has 8 divisors (see below), whose sum is σ = 162821120. Its totient is φ = 121902840.

The previous prime is 142344199. The next prime is 142344229. The reversal of 142344223 is 322443241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142344223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142344229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358 + ... + 16876.

It is an arithmetic number, because the mean of its divisors is an integer number (20352640).

Almost surely, 2^142344223 is an apocalyptic number.

142344223 is a deficient number, since it is larger than the sum of its proper divisors (20476897).

142344223 is a wasteful number, since it uses less digits than its factorization.

142344223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17757.

The product of its digits is 4608, while the sum is 25.

The square root of 142344223 is about 11930.8098216341. The cubic root of 142344223 is about 522.1315647786.

Adding to 142344223 its reverse (322443241), we get a palindrome (464787464).

The spelling of 142344223 in words is "one hundred forty-two million, three hundred forty-four thousand, two hundred twenty-three".