8500161 has 16 divisors (see below), whose sum is σ = 12015360. Its totient is φ = 5335680.

The previous prime is 8500159. The next prime is 8500181. The reversal of 8500161 is 1610058.

It is not a de Polignac number, because 8500161 - 2¹ = 8500159 is a prime.

8500161 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2376 + ... + 4758.

It is an arithmetic number, because the mean of its divisors is an integer number (750960).

Almost surely, 2^8500161 is an apocalyptic number.

It is an amenable number.

8500161 is a deficient number, since it is larger than the sum of its proper divisors (3515199).

8500161 is a wasteful number, since it uses less digits than its factorization.

8500161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 8500161 is about 2915.5035585641. The cubic root of 8500161 is about 204.0840436102.

The spelling of 8500161 in words is "eight million, five hundred thousand, one hundred sixty-one".