133585845 has 8 divisors (see below), whose sum is σ = 213737376. Its totient is φ = 71245776.

The previous prime is 133585841. The next prime is 133585849. The reversal of 133585845 is 548585331.

It is an interprime number because it is at equal distance from previous prime (133585841) and next prime (133585849).

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

It is not a de Polignac number, because 133585845 - 2² = 133585841 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133585797 and 133585806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133585841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4452847 + ... + 4452876.

It is an arithmetic number, because the mean of its divisors is an integer number (26717172).

Almost surely, 2^133585845 is an apocalyptic number.

133585845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133585845 is a deficient number, since it is larger than the sum of its proper divisors (80151531).

133585845 is an equidigital number, since it uses as much as digits as its factorization.

133585845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8905731.

The product of its digits is 288000, while the sum is 42.

The square root of 133585845 is about 11557.9342877523. The cubic root of 133585845 is about 511.1952550065.

The spelling of 133585845 in words is "one hundred thirty-three million, five hundred eighty-five thousand, eight hundred forty-five".