2012665 has 8 divisors (see below), whose sum is σ = 2423808. Its totient is φ = 1604400.

The previous prime is 2012663. The next prime is 2012671. The reversal of 2012665 is 5662102.

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

It is not a de Polignac number, because 2012665 - 2¹ = 2012663 is a prime.

It is a super-3 number, since 3×2012665³ = 24458833334532538875, which contains 333 as substring.

It is a Duffinian number.

2012665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2012663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (302976).

2^2012665 is an apocalyptic number.

It is an amenable number.

2012665 is a deficient number, since it is larger than the sum of its proper divisors (411143).

2012665 is a wasteful number, since it uses less digits than its factorization.

2012665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2012665 is about 1418.6842495778. The cubic root of 2012665 is about 126.2574939185.

Adding to 2012665 its reverse (5662102), we get a palindrome (7674767).

The spelling of 2012665 in words is "two million, twelve thousand, six hundred sixty-five".