82076181 has 32 divisors (see below), whose sum is σ = 127334400. Its totient is φ = 46500480.

The previous prime is 82076173. The next prime is 82076227. The reversal of 82076181 is 18167028.

It is a happy number.

It is not a de Polignac number, because 82076181 - 2³ = 82076173 is a prime.

It is a super-2 number, since 2×82076181² = 13472998975089522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82076131) 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 31 ways as a sum of consecutive naturals, for example, 48705 + ... + 50361.

It is an arithmetic number, because the mean of its divisors is an integer number (3979200).

Almost surely, 2^82076181 is an apocalyptic number.

It is an amenable number.

82076181 is a deficient number, since it is larger than the sum of its proper divisors (45258219).

82076181 is a wasteful number, since it uses less digits than its factorization.

82076181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 82076181 is about 9059.5905536619. The cubic root of 82076181 is about 434.5826463425.

The spelling of 82076181 in words is "eighty-two million, seventy-six thousand, one hundred eighty-one".