3011005 has 4 divisors (see below), whose sum is σ = 3613212. Its totient is φ = 2408800.

The previous prime is 3011003. The next prime is 3011009. The reversal of 3011005 is 5001103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5001103 = 467 ⋅10709.

It can be written as a sum of positive squares in 2 ways, for example, as 2393209 + 617796 = 1547^2 + 786^2 .

It is not a de Polignac number, because 3011005 - 2¹ = 3011003 is a prime.

It is a super-2 number, since 2×3011005² = 18132302220050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

3011005 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3010982 and 3011000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301096 + ... + 301105.

It is an arithmetic number, because the mean of its divisors is an integer number (903303).

Almost surely, 2^3011005 is an apocalyptic number.

It is an amenable number.

3011005 is a deficient number, since it is larger than the sum of its proper divisors (602207).

3011005 is an equidigital number, since it uses as much as digits as its factorization.

3011005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602206.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 3011005 is about 1735.2247693022. The cubic root of 3011005 is about 144.4010968985.

Adding to 3011005 its reverse (5001103), we get a palindrome (8012108).

The spelling of 3011005 in words is "three million, eleven thousand, five".