133210785 has 8 divisors (see below), whose sum is σ = 213137280. Its totient is φ = 71045744.

The previous prime is 133210771. The next prime is 133210787. The reversal of 133210785 is 587012331.

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 133210785 - 2⁴ = 133210769 is a prime.

It is a super-2 number, since 2×133210785² = 35490226480632450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133210787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4440345 + ... + 4440374.

It is an arithmetic number, because the mean of its divisors is an integer number (26642160).

Almost surely, 2^133210785 is an apocalyptic number.

133210785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133210785 is a deficient number, since it is larger than the sum of its proper divisors (79926495).

133210785 is an equidigital number, since it uses as much as digits as its factorization.

133210785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880727.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 133210785 is about 11541.6976654217. The cubic root of 133210785 is about 510.7163903795.

The spelling of 133210785 in words is "one hundred thirty-three million, two hundred ten thousand, seven hundred eighty-five".