213033 has 4 divisors (see below), whose sum is σ = 284048. Its totient is φ = 142020.

The previous prime is 213029. The next prime is 213043. The reversal of 213033 is 330312.

It is a happy number.

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 not a de Polignac number, because 213033 - 2² = 213029 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213023) 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, 35503 + ... + 35508.

It is an arithmetic number, because the mean of its divisors is an integer number (71012).

2²¹³⁰³³ is an apocalyptic number.

It is an amenable number.

213033 is a deficient number, since it is larger than the sum of its proper divisors (71015).

213033 is an equidigital number, since it uses as much as digits as its factorization.

213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71014.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 213033 is about 461.5549804736. The cubic root of 213033 is about 59.7240102183.

Adding to 213033 its reverse (330312), we get a palindrome (543345).

The spelling of 213033 in words is "two hundred thirteen thousand, thirty-three".