33013361 has 4 divisors (see below), whose sum is σ = 33905652. Its totient is φ = 32121072.

The previous prime is 33013319. The next prime is 33013363. The reversal of 33013361 is 16331033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16331033 = 17 ⋅960649.

It can be written as a sum of positive squares in 2 ways, for example, as 25959025 + 7054336 = 5095^2 + 2656^2 .

It is a cyclic number.

It is not a de Polignac number, because 33013361 - 2⁶ = 33013297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33013363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446090 + ... + 446163.

It is an arithmetic number, because the mean of its divisors is an integer number (8476413).

Almost surely, 2^33013361 is an apocalyptic number.

It is an amenable number.

33013361 is a deficient number, since it is larger than the sum of its proper divisors (892291).

33013361 is an equidigital number, since it uses as much as digits as its factorization.

33013361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892290.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 33013361 is about 5745.7254546315. The cubic root of 33013361 is about 320.7967159124.

Adding to 33013361 its reverse (16331033), we get a palindrome (49344394).

The spelling of 33013361 in words is "thirty-three million, thirteen thousand, three hundred sixty-one".