22533146 has 8 divisors (see below), whose sum is σ = 35269344. Its totient is φ = 10776700.

The previous prime is 22533131. The next prime is 22533157. The reversal of 22533146 is 64133522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244880 + ... + 244971.

It is an arithmetic number, because the mean of its divisors is an integer number (4408668).

Almost surely, 2^22533146 is an apocalyptic number.

22533146 is a deficient number, since it is larger than the sum of its proper divisors (12736198).

22533146 is a wasteful number, since it uses less digits than its factorization.

22533146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489876.

The product of its digits is 4320, while the sum is 26.

The square root of 22533146 is about 4746.9090996142. The cubic root of 22533146 is about 282.4493698912.

Adding to 22533146 its reverse (64133522), we get a palindrome (86666668).

The spelling of 22533146 in words is "twenty-two million, five hundred thirty-three thousand, one hundred forty-six".