903636161 has 2 divisors, whose sum is σ = 903636162. Its totient is φ = 903636160.

The previous prime is 903636157. The next prime is 903636179. The reversal of 903636161 is 161636309.

903636161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481539136 + 422097025 = 21944^2 + 20545^2 .

It is a cyclic number.

It is not a de Polignac number, because 903636161 - 2² = 903636157 is a prime.

It is a super-2 number, since 2×903636161² = 1633116622933635842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (903636101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451818080 + 451818081.

It is an arithmetic number, because the mean of its divisors is an integer number (451818081).

Almost surely, 2^903636161 is an apocalyptic number.

It is an amenable number.

903636161 is a deficient number, since it is larger than the sum of its proper divisors (1).

903636161 is an equidigital number, since it uses as much as digits as its factorization.

903636161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 903636161 is about 30060.5415952541. The cubic root of 903636161 is about 966.7878873877.

The spelling of 903636161 in words is "nine hundred three million, six hundred thirty-six thousand, one hundred sixty-one".