2144432215 has 4 divisors (see below), whose sum is σ = 2573318664. Its totient is φ = 1715545768.

The previous prime is 2144432201. The next prime is 2144432221. The reversal of 2144432215 is 5122344412.

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 2144432215 - 2¹⁵ = 2144399447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214443217 + ... + 214443226.

It is an arithmetic number, because the mean of its divisors is an integer number (643329666).

Almost surely, 2^2144432215 is an apocalyptic number.

2144432215 is a deficient number, since it is larger than the sum of its proper divisors (428886449).

2144432215 is an equidigital number, since it uses as much as digits as its factorization.

2144432215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428886448.

The product of its digits is 7680, while the sum is 28.

The square root of 2144432215 is about 46308.0145871101. The cubic root of 2144432215 is about 1289.5477883331.

Adding to 2144432215 its reverse (5122344412), we get a palindrome (7266776627).

The spelling of 2144432215 in words is "two billion, one hundred forty-four million, four hundred thirty-two thousand, two hundred fifteen".