233213237 has 2 divisors, whose sum is σ = 233213238. Its totient is φ = 233213236.

The previous prime is 233213159. The next prime is 233213243. The reversal of 233213237 is 732312332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133033156 + 100180081 = 11534^2 + 10009^2 .

It is a cyclic number.

It is not a de Polignac number, because 233213237 - 2¹⁶ = 233147701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233213297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116606618 + 116606619.

It is an arithmetic number, because the mean of its divisors is an integer number (116606619).

Almost surely, 2^233213237 is an apocalyptic number.

It is an amenable number.

233213237 is a deficient number, since it is larger than the sum of its proper divisors (1).

233213237 is an equidigital number, since it uses as much as digits as its factorization.

233213237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 26.

The square root of 233213237 is about 15271.3207352868. The cubic root of 233213237 is about 615.5326093135.

Adding to 233213237 its reverse (732312332), we get a palindrome (965525569).

The spelling of 233213237 in words is "two hundred thirty-three million, two hundred thirteen thousand, two hundred thirty-seven".