905036161 has 2 divisors, whose sum is σ = 905036162. Its totient is φ = 905036160.

The previous prime is 905036159. The next prime is 905036189. The reversal of 905036161 is 161630509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 877996161 + 27040000 = 29631^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 905036161 - 2¹ = 905036159 is a prime.

Together with 905036159, it forms a pair of twin primes.

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

It is equal to p_46253227 and since 905036161 and 46253227 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (905036141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452518080 + 452518081.

It is an arithmetic number, because the mean of its divisors is an integer number (452518081).

Almost surely, 2^905036161 is an apocalyptic number.

It is an amenable number.

905036161 is a deficient number, since it is larger than the sum of its proper divisors (1).

905036161 is an equidigital number, since it uses as much as digits as its factorization.

905036161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 905036161 is about 30083.8189231354. The cubic root of 905036161 is about 967.2869100067.

The spelling of 905036161 in words is "nine hundred five million, thirty-six thousand, one hundred sixty-one".