233869213 has 2 divisors, whose sum is σ = 233869214. Its totient is φ = 233869212.

The previous prime is 233869211. The next prime is 233869249. The reversal of 233869213 is 312968332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208889209 + 24980004 = 14453^2 + 4998^2 .

It is a cyclic number.

It is not a de Polignac number, because 233869213 - 2¹ = 233869211 is a prime.

Together with 233869211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233869211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116934606 + 116934607.

It is an arithmetic number, because the mean of its divisors is an integer number (116934607).

Almost surely, 2^233869213 is an apocalyptic number.

It is an amenable number.

233869213 is a deficient number, since it is larger than the sum of its proper divisors (1).

233869213 is an equidigital number, since it uses as much as digits as its factorization.

233869213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 233869213 is about 15292.7830364522. The cubic root of 233869213 is about 616.1091869828.

The spelling of 233869213 in words is "two hundred thirty-three million, eight hundred sixty-nine thousand, two hundred thirteen".