13539172100 has 36 divisors (see below), whose sum is σ = 29418979044. Its totient is φ = 5408484480.

The previous prime is 13539172099. The next prime is 13539172121. The reversal of 13539172100 is 127193531.

It can be written as a sum of positive squares in 6 ways, for example, as 16273156 + 13522898944 = 4034^2 + 116288^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13727 + ... + 165126.

Almost surely, 2^13539172100 is an apocalyptic number.

13539172100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13539172100 is an abundant number, since it is smaller than the sum of its proper divisors (15879806944).

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

13539172100 is a wasteful number, since it uses less digits than its factorization.

13539172100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179624 (or 179617 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The spelling of 13539172100 in words is "thirteen billion, five hundred thirty-nine million, one hundred seventy-two thousand, one hundred".