2191046933 has 2 divisors, whose sum is σ = 2191046934. Its totient is φ = 2191046932.

The previous prime is 2191046917. The next prime is 2191046939. The reversal of 2191046933 is 3396401912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1957354564 + 233692369 = 44242^2 + 15287^2 .

It is a cyclic number.

It is not a de Polignac number, because 2191046933 - 2⁴ = 2191046917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2191046939) 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, 1095523466 + 1095523467.

It is an arithmetic number, because the mean of its divisors is an integer number (1095523467).

Almost surely, 2^2191046933 is an apocalyptic number.

It is an amenable number.

2191046933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2191046933 is an equidigital number, since it uses as much as digits as its factorization.

2191046933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 2191046933 is about 46808.6202851569. The cubic root of 2191046933 is about 1298.8247629216.

The spelling of 2191046933 in words is "two billion, one hundred ninety-one million, forty-six thousand, nine hundred thirty-three".