142333223 has 4 divisors (see below), whose sum is σ = 148521648. Its totient is φ = 136144800.

The previous prime is 142333201. The next prime is 142333253. The reversal of 142333223 is 322333241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142333223 - 2⁶ = 142333159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 6188401 = 142333223 / (1 + 4 + 2 + 3 + 3 + 3 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142333253) 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, 3094178 + ... + 3094223.

It is an arithmetic number, because the mean of its divisors is an integer number (37130412).

Almost surely, 2^142333223 is an apocalyptic number.

142333223 is a deficient number, since it is larger than the sum of its proper divisors (6188425).

142333223 is an equidigital number, since it uses as much as digits as its factorization.

142333223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188424.

The product of its digits is 2592, while the sum is 23.

The square root of 142333223 is about 11930.3488213882. The cubic root of 142333223 is about 522.1181147651.

Adding to 142333223 its reverse (322333241), we get a palindrome (464666464).

The spelling of 142333223 in words is "one hundred forty-two million, three hundred thirty-three thousand, two hundred twenty-three".