82504161 has 12 divisors (see below), whose sum is σ = 119418000. Its totient is φ = 54889560.

The previous prime is 82504139. The next prime is 82504211. The reversal of 82504161 is 16140528.

It is not a de Polignac number, because 82504161 - 2⁹ = 82503649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82500161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4695 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (9951500).

Almost surely, 2^82504161 is an apocalyptic number.

It is an amenable number.

82504161 is a deficient number, since it is larger than the sum of its proper divisors (36913839).

82504161 is a wasteful number, since it uses less digits than its factorization.

82504161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18876 (or 18873 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 82504161 is about 9083.1801149157. The cubic root of 82504161 is about 435.3367032460.

Adding to 82504161 its reverse (16140528), we get a palindrome (98644689).

The spelling of 82504161 in words is "eighty-two million, five hundred four thousand, one hundred sixty-one".