161108086 has 4 divisors (see below), whose sum is σ = 241662132. Its totient is φ = 80554042.

The previous prime is 161108069. The next prime is 161108093. The reversal of 161108086 is 680801161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 680801161 = 347 ⋅1961963.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 40277020 + ... + 40277023.

It is an arithmetic number, because the mean of its divisors is an integer number (60415533).

Almost surely, 2^161108086 is an apocalyptic number.

161108086 is a deficient number, since it is larger than the sum of its proper divisors (80554046).

161108086 is an equidigital number, since it uses as much as digits as its factorization.

161108086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80554045.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 161108086 is about 12692.8360109158. The cubic root of 161108086 is about 544.1338946478.

The spelling of 161108086 in words is "one hundred sixty-one million, one hundred eight thousand, eighty-six".