2123315 has 8 divisors (see below), whose sum is σ = 2555808. Its totient is φ = 1693440.

The previous prime is 2123309. The next prime is 2123327. The reversal of 2123315 is 5133212.

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

It is not a de Polignac number, because 2123315 - 2¹⁴ = 2106931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123293 and 2123302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2819 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (319476).

2^2123315 is an apocalyptic number.

2123315 is a deficient number, since it is larger than the sum of its proper divisors (432493).

2123315 is an equidigital number, since it uses as much as digits as its factorization.

2123315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309.

The product of its digits is 180, while the sum is 17.

The square root of 2123315 is about 1457.1599088638. The cubic root of 2123315 is about 128.5300892964.

Adding to 2123315 its reverse (5133212), we get a palindrome (7256527).

The spelling of 2123315 in words is "two million, one hundred twenty-three thousand, three hundred fifteen".