213700033 has 2 divisors, whose sum is σ = 213700034. Its totient is φ = 213700032.

The previous prime is 213700027. The next prime is 213700037. The reversal of 213700033 is 330007312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196336144 + 17363889 = 14012^2 + 4167^2 .

It is a cyclic number.

It is not a de Polignac number, because 213700033 - 2⁵ = 213700001 is a prime.

It is not a weakly prime, because it can be changed into another prime (213700037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106850016 + 106850017.

It is an arithmetic number, because the mean of its divisors is an integer number (106850017).

Almost surely, 2^213700033 is an apocalyptic number.

It is an amenable number.

213700033 is a deficient number, since it is larger than the sum of its proper divisors (1).

213700033 is an equidigital number, since it uses as much as digits as its factorization.

213700033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 213700033 is about 14618.4825819919. The cubic root of 213700033 is about 597.8627972387.

Adding to 213700033 its reverse (330007312), we get a palindrome (543707345).

The spelling of 213700033 in words is "two hundred thirteen million, seven hundred thousand, thirty-three".