33056143 has 16 divisors (see below), whose sum is σ = 38124000. Its totient is φ = 28449792.

The previous prime is 33056141. The next prime is 33056171. The reversal of 33056143 is 34165033.

It is a 10-Lehmer number, since φ(33056143) divides (33056143-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 33056143 - 2¹ = 33056141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33056141) 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, 7603 + ... + 11131.

It is an arithmetic number, because the mean of its divisors is an integer number (2382750).

Almost surely, 2^33056143 is an apocalyptic number.

33056143 is a deficient number, since it is larger than the sum of its proper divisors (5067857).

33056143 is a wasteful number, since it uses less digits than its factorization.

33056143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 33056143 is about 5749.4471908176. The cubic root of 33056143 is about 320.9352295374.

The spelling of 33056143 in words is "thirty-three million, fifty-six thousand, one hundred forty-three".