1941091 has 2 divisors, whose sum is σ = 1941092. Its totient is φ = 1941090.

The previous prime is 1941089. The next prime is 1941101. The reversal of 1941091 is 1901491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1941091 - 2¹ = 1941089 is a prime.

Together with 1941089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1941031) 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, 970545 + 970546.

It is an arithmetic number, because the mean of its divisors is an integer number (970546).

2^1941091 is an apocalyptic number.

1941091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1941091 is an equidigital number, since it uses as much as digits as its factorization.

1941091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1941091 is about 1393.2304188468. The cubic root of 1941091 is about 124.7427455912.

The spelling of 1941091 in words is "one million, nine hundred forty-one thousand, ninety-one".