33145005 has 8 divisors (see below), whose sum is σ = 53032032. Its totient is φ = 17677328.

The previous prime is 33144977. The next prime is 33145009. The reversal of 33145005 is 50054133.

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 33145005 - 2⁷ = 33144877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145009) 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, 1104819 + ... + 1104848.

It is an arithmetic number, because the mean of its divisors is an integer number (6629004).

Almost surely, 2^33145005 is an apocalyptic number.

It is an amenable number.

33145005 is a deficient number, since it is larger than the sum of its proper divisors (19887027).

33145005 is a wasteful number, since it uses less digits than its factorization.

33145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209675.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 33145005 is about 5757.1698776395. The cubic root of 33145005 is about 321.2225531316. Note that the first 3 decimals are identical.

Adding to 33145005 its reverse (50054133), we get a palindrome (83199138).

The spelling of 33145005 in words is "thirty-three million, one hundred forty-five thousand, five".