842812105 has 8 divisors (see below), whose sum is σ = 1012208832. Its totient is φ = 673693488.

The previous prime is 842812073. The next prime is 842812121. The reversal of 842812105 is 501218248.

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

It is a cyclic number.

It is not a de Polignac number, because 842812105 - 2⁵ = 842812073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62799 + ... + 75028.

It is an arithmetic number, because the mean of its divisors is an integer number (126526104).

Almost surely, 2^842812105 is an apocalyptic number.

It is an amenable number.

842812105 is a deficient number, since it is larger than the sum of its proper divisors (169396727).

842812105 is a wasteful number, since it uses less digits than its factorization.

842812105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139055.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 842812105 is about 29031.2263778160. The cubic root of 842812105 is about 944.5905320834.

The spelling of 842812105 in words is "eight hundred forty-two million, eight hundred twelve thousand, one hundred five".