213133219 has 4 divisors (see below), whose sum is σ = 229528096. Its totient is φ = 196738344.

The previous prime is 213133213. The next prime is 213133223. The reversal of 213133219 is 912331312.

213133219 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.

It is a cyclic number.

It is not a de Polignac number, because 213133219 - 2¹³ = 213125027 is a prime.

It is a super-2 number, since 2×213133219² = 90851538082603922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213133193 and 213133202.

It is not an unprimeable number, because it can be changed into a prime (213133213) 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, 8197419 + ... + 8197444.

It is an arithmetic number, because the mean of its divisors is an integer number (57382024).

Almost surely, 2^213133219 is an apocalyptic number.

213133219 is a deficient number, since it is larger than the sum of its proper divisors (16394877).

213133219 is a wasteful number, since it uses less digits than its factorization.

213133219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16394876.

The product of its digits is 972, while the sum is 25.

The square root of 213133219 is about 14599.0828136565. The cubic root of 213133219 is about 597.3337424831. Note that the first 3 decimals are identical.

The spelling of 213133219 in words is "two hundred thirteen million, one hundred thirty-three thousand, two hundred nineteen".