8187161 has 8 divisors (see below), whose sum is σ = 8359104. Its totient is φ = 8017200.

The previous prime is 8187143. The next prime is 8187163. The reversal of 8187161 is 1617818.

8187161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8187161 - 2⁶ = 8187097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8187163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10010 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (1044888).

Almost surely, 2^8187161 is an apocalyptic number.

It is an amenable number.

8187161 is a deficient number, since it is larger than the sum of its proper divisors (171943).

8187161 is a wasteful number, since it uses less digits than its factorization.

8187161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its digits is 2688, while the sum is 32.

The square root of 8187161 is about 2861.3215478167. The cubic root of 8187161 is about 201.5476677306.

The spelling of 8187161 in words is "eight million, one hundred eighty-seven thousand, one hundred sixty-one".