82105742 has 8 divisors (see below), whose sum is σ = 123304896. Its totient is φ = 41004112.

The previous prime is 82105721. The next prime is 82105759. The reversal of 82105742 is 24750128.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22238 + ... + 25665.

It is an arithmetic number, because the mean of its divisors is an integer number (15413112).

Almost surely, 2^82105742 is an apocalyptic number.

82105742 is a deficient number, since it is larger than the sum of its proper divisors (41199154).

82105742 is a wasteful number, since it uses less digits than its factorization.

82105742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48762.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 82105742 is about 9061.2218822850. The cubic root of 82105742 is about 434.6348139566.

The spelling of 82105742 in words is "eighty-two million, one hundred five thousand, seven hundred forty-two".