84559161 has 4 divisors (see below), whose sum is σ = 112745552. Its totient is φ = 56372772.

The previous prime is 84559117. The next prime is 84559169. The reversal of 84559161 is 16195548.

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 not a de Polignac number, because 84559161 - 2¹⁰ = 84558137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84559169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14093191 + ... + 14093196.

It is an arithmetic number, because the mean of its divisors is an integer number (28186388).

Almost surely, 2^84559161 is an apocalyptic number.

It is an amenable number.

84559161 is a deficient number, since it is larger than the sum of its proper divisors (28186391).

84559161 is a wasteful number, since it uses less digits than its factorization.

84559161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28186390.

The product of its digits is 43200, while the sum is 39.

The square root of 84559161 is about 9195.6055265545. The cubic root of 84559161 is about 438.9215340515.

It can be divided in two parts, 845 and 59161, that added together give a palindrome (60006).

The spelling of 84559161 in words is "eighty-four million, five hundred fifty-nine thousand, one hundred sixty-one".