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BaseRepresentation
bin110001001010111001
3101020021022
4301022321
522421101
64152225
71466114
oct611271
9336238
10201401
11128352
1298675
1370895
145357b
153ea1b
hex312b9

201401 has 2 divisors, whose sum is σ = 201402. Its totient is φ = 201400.

The previous prime is 201389. The next prime is 201403. The reversal of 201401 is 104102.

201401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 60025 = 376^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 201401 - 26 = 201337 is a prime.

It is a Sophie Germain prime.

Together with 201403, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201401.

It is not a weakly prime, because it can be changed into another prime (201403) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100700 + 100701.

It is an arithmetic number, because the mean of its divisors is an integer number (100701).

2201401 is an apocalyptic number.

It is an amenable number.

201401 is a deficient number, since it is larger than the sum of its proper divisors (1).

201401 is an equidigital number, since it uses as much as digits as its factorization.

201401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 201401 is about 448.7772275862. Note that the first 3 decimals coincide. The cubic root of 201401 is about 58.6165887797.

Adding to 201401 its reverse (104102), we get a palindrome (305503).

It can be divided in two parts, 201 and 401, that multiplied together give a triangular number (80601 = T401).

The spelling of 201401 in words is "two hundred one thousand, four hundred one", and thus it is an iban number.