2805161147 has 2 divisors, whose sum is σ = 2805161148. Its totient is φ = 2805161146.

The previous prime is 2805161131. The next prime is 2805161243. The reversal of 2805161147 is 7411615082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2805161147 - 2⁴ = 2805161131 is a prime.

It is not a weakly prime, because it can be changed into another prime (2805161647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402580573 + 1402580574.

It is an arithmetic number, because the mean of its divisors is an integer number (1402580574).

Almost surely, 2^2805161147 is an apocalyptic number.

2805161147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805161147 is an equidigital number, since it uses as much as digits as its factorization.

2805161147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 2805161147 is about 52963.7720239033. The cubic root of 2805161147 is about 1410.3252183109.

It can be divided in two parts, 28051 and 61147, that added together give a palindrome (89198).

The spelling of 2805161147 in words is "two billion, eight hundred five million, one hundred sixty-one thousand, one hundred forty-seven".