2013959 has 4 divisors (see below), whose sum is σ = 2033616. Its totient is φ = 1994304.

The previous prime is 2013941. The next prime is 2013967. The reversal of 2013959 is 9593102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2013959 - 2⁸ = 2013703 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9674 + ... + 9879.

It is an arithmetic number, because the mean of its divisors is an integer number (508404).

2^2013959 is an apocalyptic number.

2013959 is a deficient number, since it is larger than the sum of its proper divisors (19657).

2013959 is a wasteful number, since it uses less digits than its factorization.

2013959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19656.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 2013959 is about 1419.1402326761. The cubic root of 2013959 is about 126.2845463086.

The spelling of 2013959 in words is "two million, thirteen thousand, nine hundred fifty-nine".