8504161 has 4 divisors (see below), whose sum is σ = 8553492. Its totient is φ = 8454832.

The previous prime is 8504143. The next prime is 8504183. The reversal of 8504161 is 1614058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6599761 + 1904400 = 2569^2 + 1380^2 .

It is a cyclic number.

It is not a de Polignac number, because 8504161 - 2⁵ = 8504129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8502161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24406 + ... + 24751.

It is an arithmetic number, because the mean of its divisors is an integer number (2138373).

Almost surely, 2^8504161 is an apocalyptic number.

It is an amenable number.

8504161 is a deficient number, since it is larger than the sum of its proper divisors (49331).

8504161 is a wasteful number, since it uses less digits than its factorization.

8504161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49330.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 8504161 is about 2916.1894657241. The cubic root of 8504161 is about 204.1160511670.

The spelling of 8504161 in words is "eight million, five hundred four thousand, one hundred sixty-one".