13529181013 has 4 divisors (see below), whose sum is σ = 13530506220. Its totient is φ = 13527855808.

The previous prime is 13529181011. The next prime is 13529181041. The reversal of 13529181013 is 31018192531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5718686884 + 7810494129 = 75622^2 + 88377^2 .

It is a cyclic number.

It is not a de Polignac number, because 13529181013 - 2¹ = 13529181011 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 13529181013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13529181011) 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, 647170 + ... + 667747.

It is an arithmetic number, because the mean of its divisors is an integer number (3382626555).

Almost surely, 2^13529181013 is an apocalyptic number.

It is an amenable number.

13529181013 is a deficient number, since it is larger than the sum of its proper divisors (1325207).

13529181013 is a wasteful number, since it uses less digits than its factorization.

13529181013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325206.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 13529181013 in words is "thirteen billion, five hundred twenty-nine million, one hundred eighty-one thousand, thirteen".