2143523534 has 8 divisors (see below), whose sum is σ = 3225558720. Its totient is φ = 1068337296.

The previous prime is 2143523533. The next prime is 2143523537. The reversal of 2143523534 is 4353253412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×2143523534⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2143523534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143523533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711454 + ... + 1712705.

It is an arithmetic number, because the mean of its divisors is an integer number (403194840).

Almost surely, 2^2143523534 is an apocalyptic number.

2143523534 is a deficient number, since it is larger than the sum of its proper divisors (1082035186).

2143523534 is a wasteful number, since it uses less digits than its factorization.

2143523534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424474.

The product of its digits is 43200, while the sum is 32.

The square root of 2143523534 is about 46298.2022761144. The cubic root of 2143523534 is about 1289.3656184149.

Adding to 2143523534 its reverse (4353253412), we get a palindrome (6496776946).

The spelling of 2143523534 in words is "two billion, one hundred forty-three million, five hundred twenty-three thousand, five hundred thirty-four".