133011224 has 8 divisors (see below), whose sum is σ = 249396060. Its totient is φ = 66505608.

The previous prime is 133011217. The next prime is 133011227. The reversal of 133011224 is 422110331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8313194 + ... + 8313209.

Almost surely, 2^133011224 is an apocalyptic number.

It is an amenable number.

133011224 is a deficient number, since it is larger than the sum of its proper divisors (116384836).

133011224 is a wasteful number, since it uses less digits than its factorization.

133011224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16626409 (or 16626405 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 133011224 is about 11533.0492065195. The cubic root of 133011224 is about 510.4612308331.

Adding to 133011224 its reverse (422110331), we get a palindrome (555121555).

The spelling of 133011224 in words is "one hundred thirty-three million, eleven thousand, two hundred twenty-four".