2134543523 has 16 divisors (see below), whose sum is σ = 2463005376. Its totient is φ = 1812049920.

The previous prime is 2134543513. The next prime is 2134543529. The reversal of 2134543523 is 3253454312.

It is a cyclic number.

It is not a de Polignac number, because 2134543523 - 2¹⁸ = 2134281379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2134543523.

It is not an unprimeable number, because it can be changed into a prime (2134543529) 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, 311393 + ... + 318173.

It is an arithmetic number, because the mean of its divisors is an integer number (153937836).

Almost surely, 2^2134543523 is an apocalyptic number.

2134543523 is a deficient number, since it is larger than the sum of its proper divisors (328461853).

2134543523 is a wasteful number, since it uses less digits than its factorization.

2134543523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7214.

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

The square root of 2134543523 is about 46201.1203652033. The cubic root of 2134543523 is about 1287.5625553921.

Adding to 2134543523 its reverse (3253454312), we get a palindrome (5387997835).

The spelling of 2134543523 in words is "two billion, one hundred thirty-four million, five hundred forty-three thousand, five hundred twenty-three".