236147213 has 2 divisors, whose sum is σ = 236147214. Its totient is φ = 236147212.

The previous prime is 236147161. The next prime is 236147227. The reversal of 236147213 is 312741632.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209294089 + 26853124 = 14467^2 + 5182^2 .

It is a cyclic number.

It is not a de Polignac number, because 236147213 - 2²⁶ = 169038349 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 (236147293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118073606 + 118073607.

It is an arithmetic number, because the mean of its divisors is an integer number (118073607).

Almost surely, 2^236147213 is an apocalyptic number.

It is an amenable number.

236147213 is a deficient number, since it is larger than the sum of its proper divisors (1).

236147213 is an equidigital number, since it uses as much as digits as its factorization.

236147213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 236147213 is about 15367.0821238126. The cubic root of 236147213 is about 618.1031280926.

Adding to 236147213 its reverse (312741632), we get a palindrome (548888845).

The spelling of 236147213 in words is "two hundred thirty-six million, one hundred forty-seven thousand, two hundred thirteen".