82110515 has 8 divisors (see below), whose sum is σ = 100392048. Its totient is φ = 64448800.

The previous prime is 82110503. The next prime is 82110517. The reversal of 82110515 is 51501128.

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

It is not a de Polignac number, because 82110515 - 2¹² = 82106419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82110517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154661 + ... + 155190.

It is an arithmetic number, because the mean of its divisors is an integer number (12549006).

Almost surely, 2^82110515 is an apocalyptic number.

82110515 is a deficient number, since it is larger than the sum of its proper divisors (18281533).

82110515 is a wasteful number, since it uses less digits than its factorization.

82110515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309909.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 82110515 is about 9061.4852535332. The cubic root of 82110515 is about 434.6432359082.

The spelling of 82110515 in words is "eighty-two million, one hundred ten thousand, five hundred fifteen".