2002013 has 4 divisors (see below), whose sum is σ = 2156028. Its totient is φ = 1848000.

The previous prime is 2002009. The next prime is 2002019. The reversal of 2002013 is 3102002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102002 = 2 ⋅1551001.

It can be written as a sum of positive squares in 2 ways, for example, as 1006009 + 996004 = 1003^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002013 - 2² = 2002009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002019) 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, 76988 + ... + 77013.

It is an arithmetic number, because the mean of its divisors is an integer number (539007).

2^2002013 is an apocalyptic number.

It is an amenable number.

2002013 is a deficient number, since it is larger than the sum of its proper divisors (154015).

2002013 is a wasteful number, since it uses less digits than its factorization.

2002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154014.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2002013 is about 1414.9250863562. The cubic root of 2002013 is about 126.0343611669.

Adding to 2002013 its reverse (3102002), we get a palindrome (5104015).

The spelling of 2002013 in words is "two million, two thousand, thirteen".