82180541 has 8 divisors (see below), whose sum is σ = 86788800. Its totient is φ = 77658592.

The previous prime is 82180537. The next prime is 82180573. The reversal of 82180541 is 14508128.

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

It is a cyclic number.

It is not a de Polignac number, because 82180541 - 2² = 82180537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82180531) 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, 19616 + ... + 23433.

It is an arithmetic number, because the mean of its divisors is an integer number (10848600).

Almost surely, 2^82180541 is an apocalyptic number.

It is an amenable number.

82180541 is a deficient number, since it is larger than the sum of its proper divisors (4608259).

82180541 is a wasteful number, since it uses less digits than its factorization.

82180541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43155.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 82180541 is about 9065.3483661688. The cubic root of 82180541 is about 434.7667591827.

Adding to 82180541 its reverse (14508128), we get a palindrome (96688669).

The spelling of 82180541 in words is "eighty-two million, one hundred eighty thousand, five hundred forty-one".