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227131 is a prime number
BaseRepresentation
bin110111011100111011
3102112120021
4313130323
524232011
64511311
71634122
oct673473
9375507
10227131
11145713
12ab537
137c4c8
145cab9
1547471
hex3773b

227131 has 2 divisors, whose sum is σ = 227132. Its totient is φ = 227130.

The previous prime is 227113. The next prime is 227147. The reversal of 227131 is 131722.

Adding to 227131 its reverse (131722), we get a palindrome (358853).

It is a happy number.

Together with previous prime (227113) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (227147) can be obtained adding 227131 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 227131 - 217 = 96059 is a prime.

It is a super-2 number, since 2×2271312 = 103176982322, which contains 22 as substring.

227131 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (227111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113565 + 113566.

It is an arithmetic number, because the mean of its divisors is an integer number (113566).

2227131 is an apocalyptic number.

227131 is a deficient number, since it is larger than the sum of its proper divisors (1).

227131 is an equidigital number, since it uses as much as digits as its factorization.

227131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84, while the sum is 16.

The square root of 227131 is about 476.5826266242. The cubic root of 227131 is about 61.0134342891.

The spelling of 227131 in words is "two hundred twenty-seven thousand, one hundred thirty-one".