235520213 has 2 divisors, whose sum is σ = 235520214. Its totient is φ = 235520212.

The previous prime is 235520203. The next prime is 235520231. The reversal of 235520213 is 312025532.

Together with next prime (235520231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197599249 + 37920964 = 14057^2 + 6158^2 .

It is a cyclic number.

It is not a de Polignac number, because 235520213 - 2⁸ = 235519957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235520203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117760106 + 117760107.

It is an arithmetic number, because the mean of its divisors is an integer number (117760107).

Almost surely, 2^235520213 is an apocalyptic number.

It is an amenable number.

235520213 is a deficient number, since it is larger than the sum of its proper divisors (1).

235520213 is an equidigital number, since it uses as much as digits as its factorization.

235520213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 235520213 is about 15346.6678142195. The cubic root of 235520213 is about 617.5555965175. Note that the first 4 decimals are identical.

Adding to 235520213 its reverse (312025532), we get a palindrome (547545745).

The spelling of 235520213 in words is "two hundred thirty-five million, five hundred twenty thousand, two hundred thirteen".