161848161 has 12 divisors (see below), whose sum is σ = 234008788. Its totient is φ = 107793504.

The previous prime is 161848153. The next prime is 161848163.

161848161 is nontrivially palindromic in base 10.

161848161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 155376225 + 6471936 = 12465^2 + 2544^2 .

It is not a de Polignac number, because 161848161 - 2³ = 161848153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161848163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1611 + ... + 18063.

Almost surely, 2^161848161 is an apocalyptic number.

It is an amenable number.

161848161 is a deficient number, since it is larger than the sum of its proper divisors (72160627).

161848161 is a wasteful number, since it uses less digits than its factorization.

161848161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17552 (or 17549 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 161848161 is about 12721.9558637813. The cubic root of 161848161 is about 544.9658099361.

The spelling of 161848161 in words is "one hundred sixty-one million, eight hundred forty-eight thousand, one hundred sixty-one".