133223204 has 6 divisors (see below), whose sum is σ = 233140614. Its totient is φ = 66611600.

The previous prime is 133223183. The next prime is 133223219. The reversal of 133223204 is 402322331.

It can be written as a sum of positive squares in only one way, i.e., 88360000 + 44863204 = 9400^2 + 6698^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16652897 + ... + 16652904.

It is an arithmetic number, because the mean of its divisors is an integer number (38856769).

Almost surely, 2^133223204 is an apocalyptic number.

It is an amenable number.

133223204 is a deficient number, since it is larger than the sum of its proper divisors (99917410).

133223204 is a wasteful number, since it uses less digits than its factorization.

133223204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33305805 (or 33305803 counting only the distinct ones).

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

The square root of 133223204 is about 11542.2356586582. The cubic root of 133223204 is about 510.7322609407.

Adding to 133223204 its reverse (402322331), we get a palindrome (535545535).

The spelling of 133223204 in words is "one hundred thirty-three million, two hundred twenty-three thousand, two hundred four".