33040161 has 60 divisors (see below), whose sum is σ = 61173840. Its totient is φ = 17040240.

The previous prime is 33040127. The next prime is 33040229. The reversal of 33040161 is 16104033.

It is not a de Polignac number, because 33040161 - 2⁹ = 33039649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33040361) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 237630 + ... + 237768.

It is an arithmetic number, because the mean of its divisors is an integer number (1019564).

Almost surely, 2^33040161 is an apocalyptic number.

It is an amenable number.

33040161 is a deficient number, since it is larger than the sum of its proper divisors (28133679).

33040161 is a wasteful number, since it uses less digits than its factorization.

33040161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 33040161 is about 5748.0571500290. The cubic root of 33040161 is about 320.8834992263.

Adding to 33040161 its reverse (16104033), we get a palindrome (49144194).

The spelling of 33040161 in words is "thirty-three million, forty thousand, one hundred sixty-one".