33189197 has 2 divisors, whose sum is σ = 33189198. Its totient is φ = 33189196.

The previous prime is 33189193. The next prime is 33189203. The reversal of 33189197 is 79198133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21771556 + 11417641 = 4666^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 33189197 - 2² = 33189193 is a prime.

It is a super-2 number, since 2×33189197² = 2203045595009618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33189193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16594598 + 16594599.

It is an arithmetic number, because the mean of its divisors is an integer number (16594599).

Almost surely, 2^33189197 is an apocalyptic number.

It is an amenable number.

33189197 is a deficient number, since it is larger than the sum of its proper divisors (1).

33189197 is an equidigital number, since it uses as much as digits as its factorization.

33189197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 33189197 is about 5761.0065960733. The cubic root of 33189197 is about 321.3652509813.

The spelling of 33189197 in words is "thirty-three million, one hundred eighty-nine thousand, one hundred ninety-seven".