2123365 has 8 divisors (see below), whose sum is σ = 2557728. Its totient is φ = 1692240.

The previous prime is 2123357. The next prime is 2123369. The reversal of 2123365 is 5633212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123365 - 2³ = 2123357 is a prime.

It is a Duffinian number.

2123365 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014 + ... + 2296.

It is an arithmetic number, because the mean of its divisors is an integer number (319716).

2^2123365 is an apocalyptic number.

It is an amenable number.

2123365 is a deficient number, since it is larger than the sum of its proper divisors (434363).

2123365 is a wasteful number, since it uses less digits than its factorization.

2123365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its digits is 1080, while the sum is 22.

The square root of 2123365 is about 1457.1770654248. The cubic root of 2123365 is about 128.5310981676.

Adding to 2123365 its reverse (5633212), we get a palindrome (7756577).

The spelling of 2123365 in words is "two million, one hundred twenty-three thousand, three hundred sixty-five".