82081113 has 8 divisors (see below), whose sum is σ = 109728768. Its totient is φ = 54577104.

The previous prime is 82081093. The next prime is 82081169. The reversal of 82081113 is 31118028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82081113 - 2⁵ = 82081081 is a prime.

It is a super-2 number, since 2×82081113² = 13474618222637538, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82081613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34570 + ... + 36867.

It is an arithmetic number, because the mean of its divisors is an integer number (13716096).

Almost surely, 2^82081113 is an apocalyptic number.

It is an amenable number.

82081113 is a deficient number, since it is larger than the sum of its proper divisors (27647655).

82081113 is a wasteful number, since it uses less digits than its factorization.

82081113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71823.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 82081113 is about 9059.8627473047. The cubic root of 82081113 is about 434.5913509332.

The spelling of 82081113 in words is "eighty-two million, eighty-one thousand, one hundred thirteen".