133224985 has 8 divisors (see below), whose sum is σ = 165382920. Its totient is φ = 102904704.

The previous prime is 133224919. The next prime is 133224991. The reversal of 133224985 is 589422331.

It can be written as a sum of positive squares in 4 ways, for example, as 583696 + 132641289 = 764^2 + 11517^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 133224985 - 2⁷ = 133224857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459252 + ... + 459541.

It is an arithmetic number, because the mean of its divisors is an integer number (20672865).

Almost surely, 2^133224985 is an apocalyptic number.

It is an amenable number.

133224985 is a deficient number, since it is larger than the sum of its proper divisors (32157935).

133224985 is an equidigital number, since it uses as much as digits as its factorization.

133224985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918827.

The product of its digits is 51840, while the sum is 37.

The square root of 133224985 is about 11542.3128098315. The cubic root of 133224985 is about 510.7345368458.

The spelling of 133224985 in words is "one hundred thirty-three million, two hundred twenty-four thousand, nine hundred eighty-five".