1906043 has 2 divisors, whose sum is σ = 1906044. Its totient is φ = 1906042.

The previous prime is 1906013. The next prime is 1906063. The reversal of 1906043 is 3406091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1906043 - 2⁶ = 1905979 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (1906013) 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, 953021 + 953022.

It is an arithmetic number, because the mean of its divisors is an integer number (953022).

2^1906043 is an apocalyptic number.

1906043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906043 is an equidigital number, since it uses as much as digits as its factorization.

1906043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1906043 is about 1380.5951615155. The cubic root of 1906043 is about 123.9874033336.

The spelling of 1906043 in words is "one million, nine hundred six thousand, forty-three".