2135543513 has 12 divisors (see below), whose sum is σ = 2255801940. Its totient is φ = 2021400576.

The previous prime is 2135543503. The next prime is 2135543549. The reversal of 2135543513 is 3153455312.

It can be written as a sum of positive squares in 2 ways, for example, as 956788624 + 1178754889 = 30932^2 + 34333^2 .

It is not a de Polignac number, because 2135543513 - 2⁴ = 2135543497 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 2135543513.

It is not an unprimeable number, because it can be changed into a prime (2135543503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639833 + ... + 643161.

It is an arithmetic number, because the mean of its divisors is an integer number (187983495).

Almost surely, 2^2135543513 is an apocalyptic number.

It is an amenable number.

2135543513 is a deficient number, since it is larger than the sum of its proper divisors (120258427).

2135543513 is a wasteful number, since it uses less digits than its factorization.

2135543513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144 (or 5125 counting only the distinct ones).

The product of its digits is 27000, while the sum is 32.

The square root of 2135543513 is about 46211.9412381692. The cubic root of 2135543513 is about 1287.7635895796.

Adding to 2135543513 its reverse (3153455312), we get a palindrome (5288998825).

The spelling of 2135543513 in words is "two billion, one hundred thirty-five million, five hundred forty-three thousand, five hundred thirteen".