213422633 has 4 divisors (see below), whose sum is σ = 213478800. Its totient is φ = 213366468.

The previous prime is 213422621. The next prime is 213422653. The reversal of 213422633 is 336224312.

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 213422633 - 2¹⁰ = 213421609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213422653) 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, 21935 + ... + 30132.

It is an arithmetic number, because the mean of its divisors is an integer number (53369700).

Almost surely, 2^213422633 is an apocalyptic number.

It is an amenable number.

213422633 is a deficient number, since it is larger than the sum of its proper divisors (56167).

213422633 is an equidigital number, since it uses as much as digits as its factorization.

213422633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56166.

The product of its digits is 5184, while the sum is 26.

The square root of 213422633 is about 14608.9915120791. The cubic root of 213422633 is about 597.6039937336.

Adding to 213422633 its reverse (336224312), we get a palindrome (549646945).

The spelling of 213422633 in words is "two hundred thirteen million, four hundred twenty-two thousand, six hundred thirty-three".