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102000061 is a prime number
BaseRepresentation
bin1100001010001…
…10010110111101
321002221010210001
412011012112331
5202103000221
614042114301
72345662162
oct605062675
9232833701
10102000061
1152638179
122a1ab991
1318193c87
14d792069
158e4c391
hex61465bd

102000061 has 2 divisors, whose sum is σ = 102000062. Its totient is φ = 102000060.

The previous prime is 102000043. The next prime is 102000071. The reversal of 102000061 is 160000201.

It is an a-pointer prime, because the next prime (102000071) can be obtained adding 102000061 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72352036 + 29648025 = 8506^2 + 5445^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000061 - 215 = 101967293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102000071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000030 + 51000031.

It is an arithmetic number, because the mean of its divisors is an integer number (51000031).

Almost surely, 2102000061 is an apocalyptic number.

It is an amenable number.

102000061 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000061 is an equidigital number, since it uses as much as digits as its factorization.

102000061 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 102000061 is about 10099.5079583116. The cubic root of 102000061 is about 467.2329659767.

Adding to 102000061 its reverse (160000201), we get a palindrome (262000262).

The spelling of 102000061 in words is "one hundred two million, sixty-one", and thus it is an aban number.