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2166953 is a prime number
BaseRepresentation
bin1000010001000010101001
311002002111112
420101002221
51023320303
6114240105
724263435
oct10210251
94062445
102166953
111250078
12886035
135ab429
144059c5
152cc0d8
hex2110a9

2166953 has 2 divisors, whose sum is σ = 2166954. Its totient is φ = 2166952.

The previous prime is 2166949. The next prime is 2166961. The reversal of 2166953 is 3596612.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 169 = 1472^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 2166953 - 22 = 2166949 is a prime.

It is not a weakly prime, because it can be changed into another prime (2166943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1083476 + 1083477.

It is an arithmetic number, because the mean of its divisors is an integer number (1083477).

22166953 is an apocalyptic number.

It is an amenable number.

2166953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166953 is an equidigital number, since it uses as much as digits as its factorization.

2166953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 32.

The square root of 2166953 is about 1472.0574037720. The cubic root of 2166953 is about 129.4046345488.

The spelling of 2166953 in words is "two million, one hundred sixty-six thousand, nine hundred fifty-three".