82507161 has 16 divisors (see below), whose sum is σ = 120323520. Its totient is φ = 49873920.

The previous prime is 82507147. The next prime is 82507181. The reversal of 82507161 is 16170528.

It is not a de Polignac number, because 82507161 - 2¹⁴ = 82490777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82507181) 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, 10441 + ... + 16553.

It is an arithmetic number, because the mean of its divisors is an integer number (7520220).

Almost surely, 2^82507161 is an apocalyptic number.

It is an amenable number.

82507161 is a deficient number, since it is larger than the sum of its proper divisors (37816359).

82507161 is a wasteful number, since it uses less digits than its factorization.

82507161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 82507161 is about 9083.3452538148. The cubic root of 82507161 is about 435.3419797245.

Adding to 82507161 its reverse (16170528), we get a palindrome (98677689).

The spelling of 82507161 in words is "eighty-two million, five hundred seven thousand, one hundred sixty-one".