142330213 has 2 divisors, whose sum is σ = 142330214. Its totient is φ = 142330212.

The previous prime is 142330193. The next prime is 142330219. The reversal of 142330213 is 312033241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101969604 + 40360609 = 10098^2 + 6353^2 .

It is a cyclic number.

It is not a de Polignac number, because 142330213 - 2¹³ = 142322021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142330219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71165106 + 71165107.

It is an arithmetic number, because the mean of its divisors is an integer number (71165107).

Almost surely, 2^142330213 is an apocalyptic number.

It is an amenable number.

142330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

142330213 is an equidigital number, since it uses as much as digits as its factorization.

142330213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 142330213 is about 11930.2226718532. Note that the first 3 decimals coincide. The cubic root of 142330213 is about 522.1144342315.

Adding to 142330213 its reverse (312033241), we get a palindrome (454363454).

The spelling of 142330213 in words is "one hundred forty-two million, three hundred thirty thousand, two hundred thirteen".