13452134520 has 256 divisors, whose sum is σ = 47132928000. Its totient is φ = 3036787200.

The previous prime is 13452134489. The next prime is 13452134533. The reversal of 13452134520 is 2543125431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1475175 + ... + 1484265.

It is an arithmetic number, because the mean of its divisors is an integer number (184113000).

Almost surely, 2^13452134520 is an apocalyptic number.

13452134520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13452134520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23566464000).

13452134520 is an abundant number, since it is smaller than the sum of its proper divisors (33680793480).

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

13452134520 is a wasteful number, since it uses less digits than its factorization.

13452134520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194 (or 9190 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13452134520 its reverse (2543125431), we get a palindrome (15995259951).

The spelling of 13452134520 in words is "thirteen billion, four hundred fifty-two million, one hundred thirty-four thousand, five hundred twenty".