161082049 has 2 divisors, whose sum is σ = 161082050. Its totient is φ = 161082048.

The previous prime is 161082017. The next prime is 161082091. The reversal of 161082049 is 940280161.

It is a happy number.

161082049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88491649 + 72590400 = 9407^2 + 8520^2 .

It is an emirp because it is prime and its reverse (940280161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161082049 - 2⁵ = 161082017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161082049.

It is not a weakly prime, because it can be changed into another prime (161082949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80541024 + 80541025.

It is an arithmetic number, because the mean of its divisors is an integer number (80541025).

Almost surely, 2^161082049 is an apocalyptic number.

It is an amenable number.

161082049 is a deficient number, since it is larger than the sum of its proper divisors (1).

161082049 is an equidigital number, since it uses as much as digits as its factorization.

161082049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 161082049 is about 12691.8103121659. The cubic root of 161082049 is about 544.1045802129.

The spelling of 161082049 in words is "one hundred sixty-one million, eighty-two thousand, forty-nine".