33113189 has 2 divisors, whose sum is σ = 33113190. Its totient is φ = 33113188.

The previous prime is 33113173. The next prime is 33113191. The reversal of 33113189 is 98131133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31550689 + 1562500 = 5617^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 33113189 - 2⁴ = 33113173 is a prime.

Together with 33113191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33113149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16556594 + 16556595.

It is an arithmetic number, because the mean of its divisors is an integer number (16556595).

Almost surely, 2^33113189 is an apocalyptic number.

It is an amenable number.

33113189 is a deficient number, since it is larger than the sum of its proper divisors (1).

33113189 is an equidigital number, since it uses as much as digits as its factorization.

33113189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

The square root of 33113189 is about 5754.4060510186. The cubic root of 33113189 is about 321.1197393635.

The spelling of 33113189 in words is "thirty-three million, one hundred thirteen thousand, one hundred eighty-nine".