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2194069 is a prime number
BaseRepresentation
bin1000010111101010010101
311010110200211
420113222111
51030202234
6115005421
724435463
oct10275225
94113624
102194069
111269489
12899871
135ba887
14411833
152d5164
hex217a95

2194069 has 2 divisors, whose sum is σ = 2194070. Its totient is φ = 2194068.

The previous prime is 2194051. The next prime is 2194133. The reversal of 2194069 is 9604912.

It is a happy number.

2194069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 191844 = 1415^2 + 438^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194069 - 27 = 2193941 is a prime.

It is a super-2 number, since 2×21940692 = 9627877553522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2194069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2194019) 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, 1097034 + 1097035.

It is an arithmetic number, because the mean of its divisors is an integer number (1097035).

22194069 is an apocalyptic number.

It is an amenable number.

2194069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194069 is an equidigital number, since it uses as much as digits as its factorization.

2194069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2194069 is about 1481.2390083980. The cubic root of 2194069 is about 129.9421636218.

The spelling of 2194069 in words is "two million, one hundred ninety-four thousand, sixty-nine".