133705789 has 8 divisors (see below), whose sum is σ = 152878208. Its totient is φ = 114551280.

The previous prime is 133705783. The next prime is 133705801. The reversal of 133705789 is 987507331.

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 133705789 - 2⁵ = 133705757 is a prime.

It is a super-2 number, since 2×133705789² = 35754476024225042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133705783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21904 + ... + 27334.

It is an arithmetic number, because the mean of its divisors is an integer number (19109776).

Almost surely, 2^133705789 is an apocalyptic number.

It is an amenable number.

133705789 is a deficient number, since it is larger than the sum of its proper divisors (19172419).

133705789 is an equidigital number, since it uses as much as digits as its factorization.

133705789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8955.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 133705789 is about 11563.1219400299. The cubic root of 133705789 is about 511.3482064955.

The spelling of 133705789 in words is "one hundred thirty-three million, seven hundred five thousand, seven hundred eighty-nine".