13532802109 has 2 divisors, whose sum is σ = 13532802110. Its totient is φ = 13532802108.

The previous prime is 13532801999. The next prime is 13532802139. The reversal of 13532802109 is 90120823531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11696422500 + 1836379609 = 108150^2 + 42853^2 .

It is a cyclic number.

It is not a de Polignac number, because 13532802109 - 2²⁵ = 13499247677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13532802139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6766401054 + 6766401055.

It is an arithmetic number, because the mean of its divisors is an integer number (6766401055).

Almost surely, 2^13532802109 is an apocalyptic number.

It is an amenable number.

13532802109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13532802109 is an equidigital number, since it uses as much as digits as its factorization.

13532802109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 13532802109 in words is "thirteen billion, five hundred thirty-two million, eight hundred two thousand, one hundred nine".