2012085905 has 8 divisors (see below), whose sum is σ = 2460060072. Its totient is φ = 1579297408.

The previous prime is 2012085877. The next prime is 2012085913. The reversal of 2012085905 is 5095802102.

It can be written as a sum of positive squares in 4 ways, for example, as 157577809 + 1854508096 = 12553^2 + 43064^2 .

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 2012085905 - 2¹² = 2012081809 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, 3796124 + ... + 3796653.

It is an arithmetic number, because the mean of its divisors is an integer number (307507509).

Almost surely, 2^2012085905 is an apocalyptic number.

It is an amenable number.

2012085905 is a deficient number, since it is larger than the sum of its proper divisors (447974167).

2012085905 is an equidigital number, since it uses as much as digits as its factorization.

2012085905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592835.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 2012085905 is about 44856.2805524488. The cubic root of 2012085905 is about 1262.4538359096.

The spelling of 2012085905 in words is "two billion, twelve million, eighty-five thousand, nine hundred five".