13561000271 has 32 divisors (see below), whose sum is σ = 17502764160. Its totient is φ = 10217539584.

The previous prime is 13561000259. The next prime is 13561000273. The reversal of 13561000271 is 17200016531.

It is not a de Polignac number, because 13561000271 - 2¹⁰ = 13560999247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13561000271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561000273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157451 + ... + 227843.

It is an arithmetic number, because the mean of its divisors is an integer number (546961380).

Almost surely, 2^13561000271 is an apocalyptic number.

13561000271 is a deficient number, since it is larger than the sum of its proper divisors (3941763889).

13561000271 is a wasteful number, since it uses less digits than its factorization.

13561000271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70515.

The product of its (nonzero) digits is 1260, while the sum is 26.

The spelling of 13561000271 in words is "thirteen billion, five hundred sixty-one million, two hundred seventy-one", and thus it is an aban number.