133223564 has 24 divisors (see below), whose sum is σ = 241844400. Its totient is φ = 64137920.

The previous prime is 133223561. The next prime is 133223579. The reversal of 133223564 is 465322331.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (133223561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47234 + ... + 49974.

It is an arithmetic number, because the mean of its divisors is an integer number (10076850).

Almost surely, 2^133223564 is an apocalyptic number.

It is an amenable number.

133223564 is a deficient number, since it is larger than the sum of its proper divisors (108620836).

133223564 is a wasteful number, since it uses less digits than its factorization.

133223564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193 (or 3191 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 133223564 is about 11542.2512535467. The cubic root of 133223564 is about 510.7327209793.

Adding to 133223564 its reverse (465322331), we get a palindrome (598545895).

The spelling of 133223564 in words is "one hundred thirty-three million, two hundred twenty-three thousand, five hundred sixty-four".