22133243 has 4 divisors (see below), whose sum is σ = 24145368. Its totient is φ = 20121120.

The previous prime is 22133203. The next prime is 22133263. The reversal of 22133243 is 34233122.

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 22133243 - 2⁸ = 22132987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22133203) 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, 1006046 + ... + 1006067.

It is an arithmetic number, because the mean of its divisors is an integer number (6036342).

Almost surely, 2^22133243 is an apocalyptic number.

22133243 is a deficient number, since it is larger than the sum of its proper divisors (2012125).

22133243 is a wasteful number, since it uses less digits than its factorization.

22133243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012124.

The product of its digits is 864, while the sum is 20.

The square root of 22133243 is about 4704.5980699737. The cubic root of 22133243 is about 280.7684799091.

Adding to 22133243 its reverse (34233122), we get a palindrome (56366365).

The spelling of 22133243 in words is "twenty-two million, one hundred thirty-three thousand, two hundred forty-three".