142241233 has 4 divisors (see below), whose sum is σ = 142265908. Its totient is φ = 142216560.

The previous prime is 142241213. The next prime is 142241243. The reversal of 142241233 is 332142241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332142241 = 23 ⋅14440967.

It can be written as a sum of positive squares in 2 ways, for example, as 42081169 + 100160064 = 6487^2 + 10008^2 .

It is a cyclic number.

It is not a de Polignac number, because 142241233 - 2¹⁷ = 142110161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142241213) 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, 1435 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (35566477).

Almost surely, 2^142241233 is an apocalyptic number.

It is an amenable number.

142241233 is a deficient number, since it is larger than the sum of its proper divisors (24675).

142241233 is an equidigital number, since it uses as much as digits as its factorization.

142241233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24674.

The product of its digits is 1152, while the sum is 22.

The square root of 142241233 is about 11926.4929044544. The cubic root of 142241233 is about 522.0056088318.

Adding to 142241233 its reverse (332142241), we get a palindrome (474383474).

The spelling of 142241233 in words is "one hundred forty-two million, two hundred forty-one thousand, two hundred thirty-three".