13540204530 has 48 divisors (see below), whose sum is σ = 35211570264. Its totient is φ = 3609999360.

The previous prime is 13540204529. The next prime is 13540204541. The reversal of 13540204530 is 3540204531.

It can be written as a sum of positive squares in 4 ways, for example, as 13106357289 + 433847241 = 114483^2 + 20829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13540204494 and 13540204503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558460 + ... + 582200.

Almost surely, 2^13540204530 is an apocalyptic number.

13540204530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13540204530 is an abundant number, since it is smaller than the sum of its proper divisors (21671365734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13540204530 is a wasteful number, since it uses less digits than its factorization.

13540204530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30091 (or 30088 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Subtracting from 13540204530 its reverse (3540204531), we obtain a palindrome (9999999999).

The spelling of 13540204530 in words is "thirteen billion, five hundred forty million, two hundred four thousand, five hundred thirty".