2113655 has 12 divisors (see below), whose sum is σ = 2679192. Its totient is φ = 1600560.

The previous prime is 2113651. The next prime is 2113667. The reversal of 2113655 is 5563112.

It is not a de Polignac number, because 2113655 - 2² = 2113651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1220 + ... + 2390.

It is an arithmetic number, because the mean of its divisors is an integer number (223266).

2^2113655 is an apocalyptic number.

2113655 is a deficient number, since it is larger than the sum of its proper divisors (565537).

2113655 is a wasteful number, since it uses less digits than its factorization.

2113655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1195 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 2113655 is about 1453.8414631589. The cubic root of 2113655 is about 128.3348775137.

Adding to 2113655 its reverse (5563112), we get a palindrome (7676767).

The spelling of 2113655 in words is "two million, one hundred thirteen thousand, six hundred fifty-five".