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BaseRepresentation
bin11001000001010001
312012120121
4121001101
511234411
62110241
7604531
oct310121
9165517
10102481
116aaa5
124b381
1337852
14294c1
1520571
hex19051

102481 has 2 divisors, whose sum is σ = 102482. Its totient is φ = 102480.

The previous prime is 102461. The next prime is 102497. The reversal of 102481 is 184201.

It is a happy number.

It is an a-pointer prime, because the next prime (102497) can be obtained adding 102481 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102400 + 81 = 320^2 + 9^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102481 is a prime.

It is a super-2 number, since 2×1024812 = 21004710722, which contains 22 as substring.

102481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (102451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51240 + 51241.

It is an arithmetic number, because the mean of its divisors is an integer number (51241).

2102481 is an apocalyptic number.

It is an amenable number.

102481 is a deficient number, since it is larger than the sum of its proper divisors (1).

102481 is an equidigital number, since it uses as much as digits as its factorization.

102481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 102481 is about 320.1265374817. The cubic root of 102481 is about 46.7966162601.

Adding to 102481 its reverse (184201), we get a palindrome (286682).

It can be divided in two parts, 1024 and 81, that multiplied together give a square (82944 = 2882).

The spelling of 102481 in words is "one hundred two thousand, four hundred eighty-one".