2143546475 has 12 divisors (see below), whose sum is σ = 3037711824. Its totient is φ = 1469860320.

The previous prime is 2143546453. The next prime is 2143546481. The reversal of 2143546475 is 5746453412.

It is not a de Polignac number, because 2143546475 - 2⁶ = 2143546411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6124244 + ... + 6124593.

It is an arithmetic number, because the mean of its divisors is an integer number (253142652).

Almost surely, 2^2143546475 is an apocalyptic number.

2143546475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2143546475 is a deficient number, since it is larger than the sum of its proper divisors (894165349).

2143546475 is a wasteful number, since it uses less digits than its factorization.

2143546475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12248854 (or 12248849 counting only the distinct ones).

The product of its digits is 403200, while the sum is 41.

The square root of 2143546475 is about 46298.4500280517. The cubic root of 2143546475 is about 1289.3702181981.

Adding to 2143546475 its reverse (5746453412), we get a palindrome (7889999887).

The spelling of 2143546475 in words is "two billion, one hundred forty-three million, five hundred forty-six thousand, four hundred seventy-five".