82118841 has 16 divisors (see below), whose sum is σ = 126720000. Its totient is φ = 46330128.

The previous prime is 82118833. The next prime is 82118849. The reversal of 82118841 is 14881128.

It is an interprime number because it is at equal distance from previous prime (82118833) and next prime (82118849).

It is not a de Polignac number, because 82118841 - 2³ = 82118833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82118849) 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, 23091 + ... + 26408.

It is an arithmetic number, because the mean of its divisors is an integer number (7920000).

Almost surely, 2^82118841 is an apocalyptic number.

It is an amenable number.

82118841 is a deficient number, since it is larger than the sum of its proper divisors (44601159).

82118841 is a wasteful number, since it uses less digits than its factorization.

82118841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49588.

The product of its digits is 4096, while the sum is 33.

The square root of 82118841 is about 9061.9446588467. The cubic root of 82118841 is about 434.6579263421.

Adding to 82118841 its reverse (14881128), we get a palindrome (96999969).

The spelling of 82118841 in words is "eighty-two million, one hundred eighteen thousand, eight hundred forty-one".