2132543531 has 4 divisors (see below), whose sum is σ = 2133150672. Its totient is φ = 2131936392.

The previous prime is 2132543521. The next prime is 2132543551. The reversal of 2132543531 is 1353452312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2132543531 - 2¹⁰ = 2132542507 is a prime.

It is a super-2 number, since 2×2132543531² = 9095483823219895922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132543494 and 2132543503.

It is not an unprimeable number, because it can be changed into a prime (2132543521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298271 + ... + 305336.

It is an arithmetic number, because the mean of its divisors is an integer number (533287668).

Almost surely, 2^2132543531 is an apocalyptic number.

2132543531 is a deficient number, since it is larger than the sum of its proper divisors (607141).

2132543531 is an equidigital number, since it uses as much as digits as its factorization.

2132543531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607140.

The product of its digits is 10800, while the sum is 29.

The square root of 2132543531 is about 46179.4708826336. The cubic root of 2132543531 is about 1287.1602961635.

Adding to 2132543531 its reverse (1353452312), we get a palindrome (3485995843).

The spelling of 2132543531 in words is "two billion, one hundred thirty-two million, five hundred forty-three thousand, five hundred thirty-one".