964161161 has 2 divisors, whose sum is σ = 964161162. Its totient is φ = 964161160.

The previous prime is 964161157. The next prime is 964161199. The reversal of 964161161 is 161161469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865536400 + 98624761 = 29420^2 + 9931^2 .

It is a cyclic number.

It is not a de Polignac number, because 964161161 - 2² = 964161157 is a prime.

It is not a weakly prime, because it can be changed into another prime (964161461) 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, 482080580 + 482080581.

It is an arithmetic number, because the mean of its divisors is an integer number (482080581).

Almost surely, 2^964161161 is an apocalyptic number.

It is an amenable number.

964161161 is a deficient number, since it is larger than the sum of its proper divisors (1).

964161161 is an equidigital number, since it uses as much as digits as its factorization.

964161161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 964161161 is about 31050.9446072096. The cubic root of 964161161 is about 987.9080955151.

The spelling of 964161161 in words is "nine hundred sixty-four million, one hundred sixty-one thousand, one hundred sixty-one".