2143541272 has 32 divisors (see below), whose sum is σ = 4125556800. Its totient is φ = 1043733664.

The previous prime is 2143541269. The next prime is 2143541303. The reversal of 2143541272 is 2721453412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29283 + ... + 71725.

It is an arithmetic number, because the mean of its divisors is an integer number (128923650).

Almost surely, 2^2143541272 is an apocalyptic number.

It is an amenable number.

2143541272 is a deficient number, since it is larger than the sum of its proper divisors (1982015528).

2143541272 is a wasteful number, since it uses less digits than its factorization.

2143541272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42615 (or 42611 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 2143541272 is about 46298.3938382316. The cubic root of 2143541272 is about 1289.3691749739.

Adding to 2143541272 its reverse (2721453412), we get a palindrome (4864994684).

The spelling of 2143541272 in words is "two billion, one hundred forty-three million, five hundred forty-one thousand, two hundred seventy-two".