213424033 has 4 divisors (see below), whose sum is σ = 213471280. Its totient is φ = 213376788.

The previous prime is 213424031. The next prime is 213424037. The reversal of 213424033 is 330424312.

It is a happy number.

213424033 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 213424033 - 2¹ = 213424031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213423995 and 213424013.

It is not an unprimeable number, because it can be changed into a prime (213424031) 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, 16035 + ... + 26152.

It is an arithmetic number, because the mean of its divisors is an integer number (53367820).

Almost surely, 2^213424033 is an apocalyptic number.

It is an amenable number.

213424033 is a deficient number, since it is larger than the sum of its proper divisors (47247).

213424033 is an equidigital number, since it uses as much as digits as its factorization.

213424033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47246.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 213424033 is about 14609.0394276968. The cubic root of 213424033 is about 597.6053004425.

Adding to 213424033 its reverse (330424312), we get a palindrome (543848345).

The spelling of 213424033 in words is "two hundred thirteen million, four hundred twenty-four thousand, thirty-three".