2113633 has 4 divisors (see below), whose sum is σ = 2116548. Its totient is φ = 2110720.

The previous prime is 2113609. The next prime is 2113651. The reversal of 2113633 is 3363112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 1830609 = 532^2 + 1353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113633 - 2²¹ = 16481 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 2113633.

It is not an unprimeable number, because it can be changed into a prime (2113603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (529137).

2^2113633 is an apocalyptic number.

It is an amenable number.

2113633 is a deficient number, since it is larger than the sum of its proper divisors (2915).

2113633 is a wasteful number, since it uses less digits than its factorization.

2113633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its digits is 324, while the sum is 19.

The square root of 2113633 is about 1453.8338969772. The cubic root of 2113633 is about 128.3344322539.

Adding to 2113633 its reverse (3363112), we get a palindrome (5476745).

It can be divided in two parts, 211 and 3633, that added together give a square (3844 = 62²).

The spelling of 2113633 in words is "two million, one hundred thirteen thousand, six hundred thirty-three".