2143315 has 4 divisors (see below), whose sum is σ = 2571984. Its totient is φ = 1714648.

The previous prime is 2143313. The next prime is 2143319. The reversal of 2143315 is 5133412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2143315 - 2¹ = 2143313 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 1 + 4³ + 3 + 3¹⁰ + 1 + 5⁹ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143292 and 2143301.

It is not an unprimeable number, because it can be changed into a prime (2143313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214327 + ... + 214336.

It is an arithmetic number, because the mean of its divisors is an integer number (642996).

2^2143315 is an apocalyptic number.

2143315 is a deficient number, since it is larger than the sum of its proper divisors (428669).

2143315 is an equidigital number, since it uses as much as digits as its factorization.

2143315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428668.

The product of its digits is 360, while the sum is 19.

The square root of 2143315 is about 1464.0064890567. The cubic root of 2143315 is about 128.9323804818.

Subtracting from 2143315 its sum of digits (19), we obtain a square (2143296 = 1464²).

Adding to 2143315 its reverse (5133412), we get a palindrome (7276727).

The spelling of 2143315 in words is "two million, one hundred forty-three thousand, three hundred fifteen".