213206633 has 8 divisors (see below), whose sum is σ = 215006400. Its totient is φ = 211412080.

The previous prime is 213206629. The next prime is 213206641. The reversal of 213206633 is 336602312.

213206633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213206633 - 2² = 213206629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213206603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140348 + ... + 141858.

It is an arithmetic number, because the mean of its divisors is an integer number (26875800).

Almost surely, 2^213206633 is an apocalyptic number.

It is an amenable number.

213206633 is a deficient number, since it is larger than the sum of its proper divisors (1799767).

213206633 is a wasteful number, since it uses less digits than its factorization.

213206633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 213206633 is about 14601.5969332125. The cubic root of 213206633 is about 597.4023187246.

Adding to 213206633 its reverse (336602312), we get a palindrome (549808945).

The spelling of 213206633 in words is "two hundred thirteen million, two hundred six thousand, six hundred thirty-three".