1912133 has 2 divisors, whose sum is σ = 1912134. Its totient is φ = 1912132.

The previous prime is 1912129. The next prime is 1912139. The reversal of 1912133 is 3312191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1909924 + 2209 = 1382^2 + 47^2 .

It is an emirp because it is prime and its reverse (3312191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1912133 - 2² = 1912129 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1912139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956066 + 956067.

It is an arithmetic number, because the mean of its divisors is an integer number (956067).

2^1912133 is an apocalyptic number.

It is an amenable number.

1912133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912133 is an equidigital number, since it uses as much as digits as its factorization.

1912133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 20.

The square root of 1912133 is about 1382.7989730977. The cubic root of 1912133 is about 124.1193137053.

The spelling of 1912133 in words is "one million, nine hundred twelve thousand, one hundred thirty-three".