82124111 has 8 divisors (see below), whose sum is σ = 83675904. Its totient is φ = 80582040.

The previous prime is 82124057. The next prime is 82124113. The reversal of 82124111 is 11142128.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82124111 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 (82124113) 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, 15896 + ... + 20418.

It is an arithmetic number, because the mean of its divisors is an integer number (10459488).

Almost surely, 2^82124111 is an apocalyptic number.

82124111 is a deficient number, since it is larger than the sum of its proper divisors (1551793).

82124111 is a wasteful number, since it uses less digits than its factorization.

82124111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861.

The product of its digits is 128, while the sum is 20.

The square root of 82124111 is about 9062.2354306209. The cubic root of 82124111 is about 434.6672242419.

Adding to 82124111 its reverse (11142128), we get a palindrome (93266239).

The spelling of 82124111 in words is "eighty-two million, one hundred twenty-four thousand, one hundred eleven".