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1112591 is a prime number
BaseRepresentation
bin100001111101000001111
32002112012002
410033220033
5241100331
635502515
712312464
oct4175017
92075162
101112591
1169a9a7
12457a3b
132cc54c
1420d66b
1516e9cb
hex10fa0f

1112591 has 2 divisors, whose sum is σ = 1112592. Its totient is φ = 1112590.

The previous prime is 1112581. The next prime is 1112597. The reversal of 1112591 is 1952111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1112591 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112597) 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, 556295 + 556296.

It is an arithmetic number, because the mean of its divisors is an integer number (556296).

21112591 is an apocalyptic number.

1112591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112591 is an equidigital number, since it uses as much as digits as its factorization.

1112591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90, while the sum is 20.

The square root of 1112591 is about 1054.7942927415. The cubic root of 1112591 is about 103.6203800536.

The spelling of 1112591 in words is "one million, one hundred twelve thousand, five hundred ninety-one".