2011015 has 16 divisors (see below), whose sum is σ = 2604960. Its totient is φ = 1484800.

The previous prime is 2011003. The next prime is 2011019. The reversal of 2011015 is 5101102.

It is a happy number.

2011015 is a nontrivial binomial coefficient, being equal to C(2006, 2).

It is not a de Polignac number, because 2011015 - 2⁷ = 2010887 is a prime.

2011015 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2010992 and 2011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4815 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (162810).

2^2011015 is an apocalyptic number.

2011015 is the 2005-th triangular number and also the 1003-rd hexagonal number.

2011015 is the 669-th centered nonagonal number.

2011015 is a deficient number, since it is larger than the sum of its proper divisors (593945).

2011015 is a wasteful number, since it uses less digits than its factorization.

2011015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

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

The square root of 2011015 is about 1418.1026055966. The cubic root of 2011015 is about 126.2229821609. Note that the first 3 decimals are identical.

Adding to 2011015 its reverse (5101102), we get a palindrome (7112117).

The spelling of 2011015 in words is "two million, eleven thousand, fifteen".