33161361 has 16 divisors (see below), whose sum is σ = 45691200. Its totient is φ = 21377088.

The previous prime is 33161353. The next prime is 33161371. The reversal of 33161361 is 16316133.

It is not a de Polignac number, because 33161361 - 2³ = 33161353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33161321) 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, 19035 + ... + 20703.

It is an arithmetic number, because the mean of its divisors is an integer number (2855700).

Almost surely, 2^33161361 is an apocalyptic number.

It is an amenable number.

33161361 is a deficient number, since it is larger than the sum of its proper divisors (12529839).

33161361 is a wasteful number, since it uses less digits than its factorization.

33161361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888.

The product of its digits is 972, while the sum is 24.

The square root of 33161361 is about 5758.5901920522. The cubic root of 33161361 is about 321.2753821285.

Adding to 33161361 its reverse (16316133), we get a palindrome (49477494).

The spelling of 33161361 in words is "thirty-three million, one hundred sixty-one thousand, three hundred sixty-one".