2144431 has 4 divisors (see below), whose sum is σ = 2270592. Its totient is φ = 2018272.

The previous prime is 2144419. The next prime is 2144437. The reversal of 2144431 is 1344412.

2144431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2144431 - 2⁵ = 2144399 is a prime.

It is a super-2 number, since 2×2144431² = 9197168627522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2144399 and 2144408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63055 + ... + 63088.

It is an arithmetic number, because the mean of its divisors is an integer number (567648).

2^2144431 is an apocalyptic number.

2144431 is a deficient number, since it is larger than the sum of its proper divisors (126161).

2144431 is a wasteful number, since it uses less digits than its factorization.

2144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126160.

The product of its digits is 384, while the sum is 19.

The square root of 2144431 is about 1464.3875853066. The cubic root of 2144431 is about 128.9547544788.

Subtracting from 2144431 its sum of digits (19), we obtain a palindrome (2144412).

Adding to 2144431 its reverse (1344412), we get a palindrome (3488843).

The spelling of 2144431 in words is "two million, one hundred forty-four thousand, four hundred thirty-one".