82122415 has 16 divisors (see below), whose sum is σ = 100166976. Its totient is φ = 64627200.

The previous prime is 82122373. The next prime is 82122421. The reversal of 82122415 is 51422128.

It is not a de Polignac number, because 82122415 - 2¹³ = 82114223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82122415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92775 + ... + 93655.

It is an arithmetic number, because the mean of its divisors is an integer number (6260436).

Almost surely, 2^82122415 is an apocalyptic number.

82122415 is a deficient number, since it is larger than the sum of its proper divisors (18044561).

82122415 is a wasteful number, since it uses less digits than its factorization.

82122415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its digits is 1280, while the sum is 25.

The square root of 82122415 is about 9062.1418549921. The cubic root of 82122415 is about 434.6642320200.

The spelling of 82122415 in words is "eighty-two million, one hundred twenty-two thousand, four hundred fifteen".