33090165 has 12 divisors (see below), whose sum is σ = 57356364. Its totient is φ = 17648064.

The previous prime is 33090163. The next prime is 33090199. The reversal of 33090165 is 56109033.

It can be written as a sum of positive squares in 2 ways, for example, as 24830289 + 8259876 = 4983^2 + 2874^2 .

It is not a de Polignac number, because 33090165 - 2¹ = 33090163 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33090163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367624 + ... + 367713.

It is an arithmetic number, because the mean of its divisors is an integer number (4779697).

Almost surely, 2^33090165 is an apocalyptic number.

It is an amenable number.

33090165 is a deficient number, since it is larger than the sum of its proper divisors (24266199).

33090165 is a wasteful number, since it uses less digits than its factorization.

33090165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735348 (or 735345 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 33090165 is about 5752.4051491528. The cubic root of 33090165 is about 321.0452959634.

Adding to 33090165 its reverse (56109033), we get a palindrome (89199198).

The spelling of 33090165 in words is "thirty-three million, ninety thousand, one hundred sixty-five".