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102061 is a prime number
BaseRepresentation
bin11000111010101101
312012000001
4120322231
511231221
62104301
7603361
oct307255
9165001
10102061
116a753
124b091
13375bb
14292a1
1520391
hex18ead

102061 has 2 divisors, whose sum is σ = 102062. Its totient is φ = 102060.

The previous prime is 102059. The next prime is 102071. The reversal of 102061 is 160201.

It is an a-pointer prime, because the next prime (102071) can be obtained adding 102061 to its sum of digits (10).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86436 + 15625 = 294^2 + 125^2 .

It is an emirp because it is prime and its reverse (160201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102061 - 21 = 102059 is a prime.

Together with 102059, it forms a pair of twin primes.

102061 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51030 + 51031.

It is an arithmetic number, because the mean of its divisors is an integer number (51031).

2102061 is an apocalyptic number.

It is an amenable number.

102061 is a deficient number, since it is larger than the sum of its proper divisors (1).

102061 is an equidigital number, since it uses as much as digits as its factorization.

102061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 102061 is about 319.4698733840. The cubic root of 102061 is about 46.7325995468.

Adding to 102061 its reverse (160201), we get a palindrome (262262).

It can be divided in two parts, 1020 and 61, that added together give a triangular number (1081 = T46).

The spelling of 102061 in words is "one hundred two thousand, sixty-one".