2144541142 has 4 divisors (see below), whose sum is σ = 3216811716. Its totient is φ = 1072270570.

The previous prime is 2144541073. The next prime is 2144541163. The reversal of 2144541142 is 2411454412.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2144541142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536135284 + ... + 536135287.

It is an arithmetic number, because the mean of its divisors is an integer number (804202929).

Almost surely, 2^2144541142 is an apocalyptic number.

2144541142 is a deficient number, since it is larger than the sum of its proper divisors (1072270574).

2144541142 is a wasteful number, since it uses less digits than its factorization.

2144541142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072270573.

The product of its digits is 5120, while the sum is 28.

The square root of 2144541142 is about 46309.1906860830. The cubic root of 2144541142 is about 1289.5696222701.

Adding to 2144541142 its reverse (2411454412), we get a palindrome (4555995554).

The spelling of 2144541142 in words is "two billion, one hundred forty-four million, five hundred forty-one thousand, one hundred forty-two".