161080481 has 2 divisors, whose sum is σ = 161080482. Its totient is φ = 161080480.

The previous prime is 161080441. The next prime is 161080511. The reversal of 161080481 is 184080161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132618256 + 28462225 = 11516^2 + 5335^2 .

It is a cyclic number.

It is not a de Polignac number, because 161080481 - 2⁶ = 161080417 is a prime.

It is a super-2 number, since 2×161080481² = 51893842718382722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (161080411) 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, 80540240 + 80540241.

It is an arithmetic number, because the mean of its divisors is an integer number (80540241).

Almost surely, 2^161080481 is an apocalyptic number.

It is an amenable number.

161080481 is a deficient number, since it is larger than the sum of its proper divisors (1).

161080481 is an equidigital number, since it uses as much as digits as its factorization.

161080481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 161080481 is about 12691.7485398979. The cubic root of 161080481 is about 544.1028147384.

The spelling of 161080481 in words is "one hundred sixty-one million, eighty thousand, four hundred eighty-one".