2144433131 has 4 divisors (see below), whose sum is σ = 2144874000. Its totient is φ = 2143992264.

The previous prime is 2144433113. The next prime is 2144433133. The reversal of 2144433131 is 1313344412.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144433131 is a prime.

It is a super-2 number, since 2×2144433131² = 9197186906660926322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144433131.

It is not an unprimeable number, because it can be changed into a prime (2144433133) 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, 213056 + ... + 222893.

It is an arithmetic number, because the mean of its divisors is an integer number (536218500).

Almost surely, 2^2144433131 is an apocalyptic number.

2144433131 is a deficient number, since it is larger than the sum of its proper divisors (440869).

2144433131 is an equidigital number, since it uses as much as digits as its factorization.

2144433131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440868.

The product of its digits is 3456, while the sum is 26.

The square root of 2144433131 is about 46308.0244774056. The cubic root of 2144433131 is about 1289.5479719443.

Adding to 2144433131 its reverse (1313344412), we get a palindrome (3457777543).

The spelling of 2144433131 in words is "two billion, one hundred forty-four million, four hundred thirty-three thousand, one hundred thirty-one".