161833055 has 4 divisors (see below), whose sum is σ = 194199672. Its totient is φ = 129466440.

The previous prime is 161833039. The next prime is 161833097. The reversal of 161833055 is 550338161.

161833055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550338161 = 17 ⋅32372833.

It is not a de Polignac number, because 161833055 - 2⁴ = 161833039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16183301 + ... + 16183310.

It is an arithmetic number, because the mean of its divisors is an integer number (48549918).

Almost surely, 2^161833055 is an apocalyptic number.

161833055 is a deficient number, since it is larger than the sum of its proper divisors (32366617).

161833055 is an equidigital number, since it uses as much as digits as its factorization.

161833055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32366616.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 161833055 is about 12721.3621519081. The cubic root of 161833055 is about 544.9488547241.

The spelling of 161833055 in words is "one hundred sixty-one million, eight hundred thirty-three thousand, fifty-five".