1959091 has 2 divisors, whose sum is σ = 1959092. Its totient is φ = 1959090.

The previous prime is 1959079. The next prime is 1959149. The reversal of 1959091 is 1909591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1959091 - 2¹⁷ = 1828019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1959011) 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, 979545 + 979546.

It is an arithmetic number, because the mean of its divisors is an integer number (979546).

2^1959091 is an apocalyptic number.

1959091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1959091 is an equidigital number, since it uses as much as digits as its factorization.

1959091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 1959091 is about 1399.6753194938. The cubic root of 1959091 is about 125.1271452954.

The spelling of 1959091 in words is "one million, nine hundred fifty-nine thousand, ninety-one".