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41381 is a prime number
BaseRepresentation
bin1010000110100101
32002202122
422012211
52311011
6515325
7231434
oct120645
962678
1041381
11290aa
121bb45
1315ab2
141111b
15c3db
hexa1a5

41381 has 2 divisors, whose sum is σ = 41382. Its totient is φ = 41380.

The previous prime is 41357. The next prime is 41387. The reversal of 41381 is 18314.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36481 + 4900 = 191^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 41381 - 210 = 40357 is a prime.

It is a super-2 number, since 2×413812 = 3424774322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41387) 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, 20690 + 20691.

It is an arithmetic number, because the mean of its divisors is an integer number (20691).

241381 is an apocalyptic number.

It is an amenable number.

41381 is a deficient number, since it is larger than the sum of its proper divisors (1).

41381 is an equidigital number, since it uses as much as digits as its factorization.

41381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 41381 is about 203.4232041828. The cubic root of 41381 is about 34.5886538805.

Adding to 41381 its reverse (18314), we get a palindrome (59695).

It can be divided in two parts, 413 and 81, that added together give a palindrome (494).

The spelling of 41381 in words is "forty-one thousand, three hundred eighty-one".