2144541531 has 16 divisors (see below), whose sum is σ = 3195416448. Its totient is φ = 1268020800.

The previous prime is 2144541527. The next prime is 2144541557. The reversal of 2144541531 is 1351454412.

It is not a de Polignac number, because 2144541531 - 2² = 2144541527 is a prime.

It is a super-2 number, since 2×2144541531² = 9198116756367647922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2144541631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791161 + ... + 793866.

It is an arithmetic number, because the mean of its divisors is an integer number (199713528).

Almost surely, 2^2144541531 is an apocalyptic number.

2144541531 is a deficient number, since it is larger than the sum of its proper divisors (1050874917).

2144541531 is a wasteful number, since it uses less digits than its factorization.

2144541531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585082.

The product of its digits is 9600, while the sum is 30.

The square root of 2144541531 is about 46309.1948861131. The cubic root of 2144541531 is about 1289.5697002421.

Adding to 2144541531 its reverse (1351454412), we get a palindrome (3495995943).

The spelling of 2144541531 in words is "two billion, one hundred forty-four million, five hundred forty-one thousand, five hundred thirty-one".