33394157 has 2 divisors, whose sum is σ = 33394158. Its totient is φ = 33394156.

The previous prime is 33394147. The next prime is 33394189. The reversal of 33394157 is 75149333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 12773476 = 4541^2 + 3574^2 .

It is a cyclic number.

It is not a de Polignac number, because 33394157 - 2¹⁰ = 33393133 is a prime.

It is a super-2 number, since 2×33394157² = 2230339443481298, 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 (33394147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16697078 + 16697079.

It is an arithmetic number, because the mean of its divisors is an integer number (16697079).

Almost surely, 2^33394157 is an apocalyptic number.

It is an amenable number.

33394157 is a deficient number, since it is larger than the sum of its proper divisors (1).

33394157 is an equidigital number, since it uses as much as digits as its factorization.

33394157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 35.

The square root of 33394157 is about 5778.7677752268. The cubic root of 33394157 is about 322.0254246092.

The spelling of 33394157 in words is "thirty-three million, three hundred ninety-four thousand, one hundred fifty-seven".