2144120542 has 32 divisors (see below), whose sum is σ = 3321077760. Its totient is φ = 1037682720.

The previous prime is 2144120527. The next prime is 2144120581. The reversal of 2144120542 is 2450214412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5511684 + ... + 5512072.

It is an arithmetic number, because the mean of its divisors is an integer number (103783680).

Almost surely, 2^2144120542 is an apocalyptic number.

2144120542 is a deficient number, since it is larger than the sum of its proper divisors (1176957218).

2144120542 is a wasteful number, since it uses less digits than its factorization.

2144120542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2144120542 is about 46304.6492482126. The cubic root of 2144120542 is about 1289.4853107694.

Adding to 2144120542 its reverse (2450214412), we get a palindrome (4594334954).

The spelling of 2144120542 in words is "two billion, one hundred forty-four million, one hundred twenty thousand, five hundred forty-two".