4013013 has 4 divisors (see below), whose sum is σ = 5350688. Its totient is φ = 2675340.

The previous prime is 4012999. The next prime is 4013021. The reversal of 4013013 is 3103104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4013013 - 2⁴ = 4012997 is a prime.

It is a super-2 number, since 2×4013013² = 32208546676338, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4013013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012013) 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, 668833 + ... + 668838.

It is an arithmetic number, because the mean of its divisors is an integer number (1337672).

Almost surely, 2^4013013 is an apocalyptic number.

It is an amenable number.

4013013 is a deficient number, since it is larger than the sum of its proper divisors (1337675).

4013013 is a wasteful number, since it uses less digits than its factorization.

4013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337674.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 4013013 is about 2003.2506083863. The cubic root of 4013013 is about 158.9120592773.

Adding to 4013013 its reverse (3103104), we get a palindrome (7116117).

Subtracting from 4013013 its reverse (3103104), we obtain a palindrome (909909).

The spelling of 4013013 in words is "four million, thirteen thousand, thirteen".