213001133 has 4 divisors (see below), whose sum is σ = 217533120. Its totient is φ = 208469148.

The previous prime is 213001127. The next prime is 213001141. The reversal of 213001133 is 331100312.

213001133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213001133 - 2⁶ = 213001069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213001123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265923 + ... + 2266016.

It is an arithmetic number, because the mean of its divisors is an integer number (54383280).

Almost surely, 2^213001133 is an apocalyptic number.

It is an amenable number.

213001133 is a deficient number, since it is larger than the sum of its proper divisors (4531987).

213001133 is an equidigital number, since it uses as much as digits as its factorization.

213001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531986.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 213001133 is about 14594.5583352152. The cubic root of 213001133 is about 597.2103208823.

Adding to 213001133 its reverse (331100312), we get a palindrome (544101445).

The spelling of 213001133 in words is "two hundred thirteen million, one thousand, one hundred thirty-three".