33165138 has 32 divisors (see below), whose sum is σ = 67651200. Its totient is φ = 10837376.

The previous prime is 33165137. The next prime is 33165163. The reversal of 33165138 is 83156133.

It is not an unprimeable number, because it can be changed into a prime (33165137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92203 + ... + 92561.

It is an arithmetic number, because the mean of its divisors is an integer number (2114100).

Almost surely, 2^33165138 is an apocalyptic number.

33165138 is an abundant number, since it is smaller than the sum of its proper divisors (34486062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33165138 is a wasteful number, since it uses less digits than its factorization.

33165138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

The product of its digits is 6480, while the sum is 30.

The square root of 33165138 is about 5758.9181275653. The cubic root of 33165138 is about 321.2875791656.

The spelling of 33165138 in words is "thirty-three million, one hundred sixty-five thousand, one hundred thirty-eight".