2113785 has 24 divisors (see below), whose sum is σ = 3706560. Its totient is φ = 1114272.

The previous prime is 2113759. The next prime is 2113789. The reversal of 2113785 is 5873112.

It is not a de Polignac number, because 2113785 - 2⁵ = 2113753 is a prime.

It is a super-3 number, since 3×2113785³ = 28333726004187034875, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4596 + ... + 5034.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

2^2113785 is an apocalyptic number.

It is an amenable number.

2113785 is a deficient number, since it is larger than the sum of its proper divisors (1592775).

2113785 is a wasteful number, since it uses less digits than its factorization.

2113785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 554 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 2113785 is about 1453.8861716104. The cubic root of 2113785 is about 128.3375085315.

Adding to 2113785 its reverse (5873112), we get a palindrome (7986897).

The spelling of 2113785 in words is "two million, one hundred thirteen thousand, seven hundred eighty-five".