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10285181 is a prime number
BaseRepresentation
bin100111001111…
…000001111101
3201100112121122
4213033001331
510113111211
61004240325
7153264644
oct47170175
921315548
1010285181
115895455
1235400a5
13219160a
14151a35b
15d826db
hex9cf07d

10285181 has 2 divisors, whose sum is σ = 10285182. Its totient is φ = 10285180.

The previous prime is 10285139. The next prime is 10285183. The reversal of 10285181 is 18158201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5597956 + 4687225 = 2366^2 + 2165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10285181 is a prime.

It is a super-2 number, since 2×102851812 = 211569896405522, which contains 22 as substring.

Together with 10285183, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10285181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10285183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5142590 + 5142591.

It is an arithmetic number, because the mean of its divisors is an integer number (5142591).

Almost surely, 210285181 is an apocalyptic number.

It is an amenable number.

10285181 is a deficient number, since it is larger than the sum of its proper divisors (1).

10285181 is an equidigital number, since it uses as much as digits as its factorization.

10285181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 10285181 is about 3207.0517613534. The cubic root of 10285181 is about 217.4723160255.

The spelling of 10285181 in words is "ten million, two hundred eighty-five thousand, one hundred eighty-one".