230138213 has 2 divisors, whose sum is σ = 230138214. Its totient is φ = 230138212.

The previous prime is 230138159. The next prime is 230138221. The reversal of 230138213 is 312831032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220908769 + 9229444 = 14863^2 + 3038^2 .

It is a cyclic number.

It is not a de Polignac number, because 230138213 - 2⁶ = 230138149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230138263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115069106 + 115069107.

It is an arithmetic number, because the mean of its divisors is an integer number (115069107).

Almost surely, 2^230138213 is an apocalyptic number.

It is an amenable number.

230138213 is a deficient number, since it is larger than the sum of its proper divisors (1).

230138213 is an equidigital number, since it uses as much as digits as its factorization.

230138213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 230138213 is about 15170.3069514100. The cubic root of 230138213 is about 612.8152705967.

Adding to 230138213 its reverse (312831032), we get a palindrome (542969245).

The spelling of 230138213 in words is "two hundred thirty million, one hundred thirty-eight thousand, two hundred thirteen".