2159913 has 16 divisors (see below), whose sum is σ = 3316736. Its totient is φ = 1224720.

The previous prime is 2159903. The next prime is 2159923. The reversal of 2159913 is 3199512.

It is an interprime number because it is at equal distance from previous prime (2159903) and next prime (2159923).

It is not a de Polignac number, because 2159913 - 2⁴ = 2159897 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159903) 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, 3108 + ... + 3738.

It is an arithmetic number, because the mean of its divisors is an integer number (207296).

2^2159913 is an apocalyptic number.

It is an amenable number.

2159913 is a deficient number, since it is larger than the sum of its proper divisors (1156823).

2159913 is a wasteful number, since it uses less digits than its factorization.

2159913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its digits is 2430, while the sum is 30.

The square root of 2159913 is about 1469.6642473708. The cubic root of 2159913 is about 129.2643458618.

It can be divided in two parts, 21599 and 13, that added together give a palindrome (21612).

The spelling of 2159913 in words is "two million, one hundred fifty-nine thousand, nine hundred thirteen".