20674133 has 2 divisors, whose sum is σ = 20674134. Its totient is φ = 20674132.

The previous prime is 20674067. The next prime is 20674153. The reversal of 20674133 is 33147602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 9229444 = 3383^2 + 3038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20674133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20674153) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10337066 + 10337067.

It is an arithmetic number, because the mean of its divisors is an integer number (10337067).

Almost surely, 2^20674133 is an apocalyptic number.

It is an amenable number.

20674133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20674133 is an equidigital number, since it uses as much as digits as its factorization.

20674133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20674133 is about 4546.8816786893. The cubic root of 20674133 is about 274.4579205861.

It can be divided in two parts, 2067 and 4133, that multiplied together give a triangular number (8542911 = T₄₁₃₃).

The spelling of 20674133 in words is "twenty million, six hundred seventy-four thousand, one hundred thirty-three".