133006285 has 4 divisors (see below), whose sum is σ = 159607548. Its totient is φ = 106405024.

The previous prime is 133006271. The next prime is 133006297. The reversal of 133006285 is 582600331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43533604 + 89472681 = 6598^2 + 9459^2 .

It is a cyclic number.

It is not a de Polignac number, because 133006285 - 2⁵ = 133006253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13300624 + ... + 13300633.

It is an arithmetic number, because the mean of its divisors is an integer number (39901887).

Almost surely, 2^133006285 is an apocalyptic number.

It is an amenable number.

133006285 is a deficient number, since it is larger than the sum of its proper divisors (26601263).

133006285 is an equidigital number, since it uses as much as digits as its factorization.

133006285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26601262.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 133006285 is about 11532.8350807596. The cubic root of 133006285 is about 510.4549125712.

The spelling of 133006285 in words is "one hundred thirty-three million, six thousand, two hundred eighty-five".