8539161 has 4 divisors (see below), whose sum is σ = 11385552. Its totient is φ = 5692772.

The previous prime is 8539147. The next prime is 8539163. The reversal of 8539161 is 1619358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8539161 - 2⁷ = 8539033 is a prime.

8539161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8539163) 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, 1423191 + ... + 1423196.

It is an arithmetic number, because the mean of its divisors is an integer number (2846388).

Almost surely, 2^8539161 is an apocalyptic number.

It is an amenable number.

8539161 is a deficient number, since it is larger than the sum of its proper divisors (2846391).

8539161 is a wasteful number, since it uses less digits than its factorization.

8539161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846390.

The product of its digits is 6480, while the sum is 33.

The square root of 8539161 is about 2922.1842857698. The cubic root of 8539161 is about 204.3956900936.

The spelling of 8539161 in words is "eight million, five hundred thirty-nine thousand, one hundred sixty-one".