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1056871 is a prime number
BaseRepresentation
bin100000010000001100111
31222200202101
410002001213
5232304441
634352531
711661154
oct4020147
91880671
101056871
11662052
1242b747
132b008a
141d722b
1515d231
hex102067

1056871 has 2 divisors, whose sum is σ = 1056872. Its totient is φ = 1056870.

The previous prime is 1056863. The next prime is 1056893. The reversal of 1056871 is 1786501.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1786501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1056871 - 23 = 1056863 is a prime.

It is a super-2 number, since 2×10568712 = 2233952621282, which contains 22 as substring.

1056871 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056071) 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, 528435 + 528436.

It is an arithmetic number, because the mean of its divisors is an integer number (528436).

21056871 is an apocalyptic number.

1056871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056871 is an equidigital number, since it uses as much as digits as its factorization.

1056871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1056871 is about 1028.0423143042. The cubic root of 1056871 is about 101.8608573088.

The spelling of 1056871 in words is "one million, fifty-six thousand, eight hundred seventy-one".