1690094111 has 2 divisors, whose sum is σ = 1690094112. Its totient is φ = 1690094110.

The previous prime is 1690094093. The next prime is 1690094113. The reversal of 1690094111 is 1114900961.

It is a strong prime.

It is an emirp because it is prime and its reverse (1114900961) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1690094111 is a prime.

Together with 1690094113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1690094113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845047055 + 845047056.

It is an arithmetic number, because the mean of its divisors is an integer number (845047056).

Almost surely, 2^1690094111 is an apocalyptic number.

1690094111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690094111 is an equidigital number, since it uses as much as digits as its factorization.

1690094111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 1690094111 is about 41110.7542013036. The cubic root of 1690094111 is about 1191.1605350875.

The spelling of 1690094111 in words is "one billion, six hundred ninety million, ninety-four thousand, one hundred eleven".