142142233 has 2 divisors, whose sum is σ = 142142234. Its totient is φ = 142142232.

The previous prime is 142142227. The next prime is 142142257. The reversal of 142142233 is 332241241.

142142233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133333209 + 8809024 = 11547^2 + 2968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142142233 is a prime.

It is not a weakly prime, because it can be changed into another prime (142142263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71071116 + 71071117.

It is an arithmetic number, because the mean of its divisors is an integer number (71071117).

Almost surely, 2^142142233 is an apocalyptic number.

It is an amenable number.

142142233 is a deficient number, since it is larger than the sum of its proper divisors (1).

142142233 is an equidigital number, since it uses as much as digits as its factorization.

142142233 is an evil number, because the sum of its binary digits is even.

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

The square root of 142142233 is about 11922.3417582285. The cubic root of 142142233 is about 521.8844752986.

Adding to 142142233 its reverse (332241241), we get a palindrome (474383474).

The spelling of 142142233 in words is "one hundred forty-two million, one hundred forty-two thousand, two hundred thirty-three".