213045533 has 2 divisors, whose sum is σ = 213045534. Its totient is φ = 213045532.

The previous prime is 213045523. The next prime is 213045551. The reversal of 213045533 is 335540312.

213045533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156825529 + 56220004 = 12523^2 + 7498^2 .

It is a cyclic number.

It is not a de Polignac number, because 213045533 - 2⁸ = 213045277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213045523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106522766 + 106522767.

It is an arithmetic number, because the mean of its divisors is an integer number (106522767).

Almost surely, 2^213045533 is an apocalyptic number.

It is an amenable number.

213045533 is a deficient number, since it is larger than the sum of its proper divisors (1).

213045533 is an equidigital number, since it uses as much as digits as its factorization.

213045533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 213045533 is about 14596.0793708448. The cubic root of 213045533 is about 597.2518140826.

Adding to 213045533 its reverse (335540312), we get a palindrome (548585845).

The spelling of 213045533 in words is "two hundred thirteen million, forty-five thousand, five hundred thirty-three".