160864961 has 2 divisors, whose sum is σ = 160864962. Its totient is φ = 160864960.

The previous prime is 160864939. The next prime is 160864969. The reversal of 160864961 is 169468061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103408561 + 57456400 = 10169^2 + 7580^2 .

It is a cyclic number.

It is not a de Polignac number, because 160864961 - 2¹⁸ = 160602817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (160864969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80432480 + 80432481.

It is an arithmetic number, because the mean of its divisors is an integer number (80432481).

Almost surely, 2^160864961 is an apocalyptic number.

It is an amenable number.

160864961 is a deficient number, since it is larger than the sum of its proper divisors (1).

160864961 is an equidigital number, since it uses as much as digits as its factorization.

160864961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 160864961 is about 12683.2551421155. The cubic root of 160864961 is about 543.8600429768.

The spelling of 160864961 in words is "one hundred sixty million, eight hundred sixty-four thousand, nine hundred sixty-one".