33161364 has 18 divisors (see below), whose sum is σ = 83824650. Its totient is φ = 11053776.

The previous prime is 33161353. The next prime is 33161371. The reversal of 33161364 is 46316133.

It can be written as a sum of positive squares in only one way, i.e., 20629764 + 12531600 = 4542^2 + 3540^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460539 + ... + 460610.

It is an arithmetic number, because the mean of its divisors is an integer number (4656925).

Almost surely, 2^33161364 is an apocalyptic number.

It is an amenable number.

33161364 is an abundant number, since it is smaller than the sum of its proper divisors (50663286).

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

33161364 is a wasteful number, since it uses less digits than its factorization.

33161364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921159 (or 921154 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 33161364 is about 5758.5904525326. The cubic root of 33161364 is about 321.2753918167.

Adding to 33161364 its reverse (46316133), we get a palindrome (79477497).

The spelling of 33161364 in words is "thirty-three million, one hundred sixty-one thousand, three hundred sixty-four".