2001913 has 4 divisors (see below), whose sum is σ = 2010960. Its totient is φ = 1992868.

The previous prime is 2001911. The next prime is 2001919. The reversal of 2001913 is 3191002.

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 a cyclic number.

It is not a de Polignac number, because 2001913 - 2¹ = 2001911 is a prime.

It is a Duffinian number.

2001913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2001911) 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, 4183 + ... + 4636.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

2^2001913 is an apocalyptic number.

It is an amenable number.

2001913 is a deficient number, since it is larger than the sum of its proper divisors (9047).

2001913 is an equidigital number, since it uses as much as digits as its factorization.

2001913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2001913 is about 1414.8897483550. The cubic root of 2001913 is about 126.0322626714.

Adding to 2001913 its reverse (3191002), we get a palindrome (5192915).

The spelling of 2001913 in words is "two million, one thousand, nine hundred thirteen".