1173327161 has 2 divisors, whose sum is σ = 1173327162. Its totient is φ = 1173327160.

The previous prime is 1173327151. The next prime is 1173327167. The reversal of 1173327161 is 1617233711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 972254761 + 201072400 = 31181^2 + 14180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173327161 - 2²⁶ = 1106218297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1173327167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586663580 + 586663581.

It is an arithmetic number, because the mean of its divisors is an integer number (586663581).

Almost surely, 2^1173327161 is an apocalyptic number.

It is an amenable number.

1173327161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173327161 is an equidigital number, since it uses as much as digits as its factorization.

1173327161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 32.

The square root of 1173327161 is about 34253.8634463326. The cubic root of 1173327161 is about 1054.7261363226.

The spelling of 1173327161 in words is "one billion, one hundred seventy-three million, three hundred twenty-seven thousand, one hundred sixty-one".