10205161 has 2 divisors, whose sum is σ = 10205162. Its totient is φ = 10205160.

The previous prime is 10205119. The next prime is 10205177. The reversal of 10205161 is 16150201.

It is a happy number.

It is an a-pointer prime, because the next prime (10205177) can be obtained adding 10205161 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., 5978025 + 4227136 = 2445^2 + 2056^2 .

It is an emirp because it is prime and its reverse (16150201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10205161 - 2¹¹ = 10203113 is a prime.

It is a super-2 number, since 2×10205161² = 208290622071842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10205101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102580 + 5102581.

It is an arithmetic number, because the mean of its divisors is an integer number (5102581).

Almost surely, 2^10205161 is an apocalyptic number.

It is an amenable number.

10205161 is a deficient number, since it is larger than the sum of its proper divisors (1).

10205161 is an equidigital number, since it uses as much as digits as its factorization.

10205161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 10205161 is about 3194.5517682454. The cubic root of 10205161 is about 216.9068597288.

Adding to 10205161 its reverse (16150201), we get a palindrome (26355362).

The spelling of 10205161 in words is "ten million, two hundred five thousand, one hundred sixty-one".