82942105 has 4 divisors (see below), whose sum is σ = 99530532. Its totient is φ = 66353680.

The previous prime is 82942063. The next prime is 82942121. The reversal of 82942105 is 50124928.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43138624 + 39803481 = 6568^2 + 6309^2 .

It is not a de Polignac number, because 82942105 - 2¹⁹ = 82417817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8294206 + ... + 8294215.

It is an arithmetic number, because the mean of its divisors is an integer number (24882633).

Almost surely, 2^82942105 is an apocalyptic number.

It is an amenable number.

82942105 is a deficient number, since it is larger than the sum of its proper divisors (16588427).

82942105 is a wasteful number, since it uses less digits than its factorization.

82942105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16588426.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 82942105 is about 9107.2556239517. The cubic root of 82942105 is about 436.1056210319.

The spelling of 82942105 in words is "eighty-two million, nine hundred forty-two thousand, one hundred five".