13155205187 has 2 divisors, whose sum is σ = 13155205188. Its totient is φ = 13155205186.

The previous prime is 13155205171. The next prime is 13155205213. The reversal of 13155205187 is 78150255131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13155205187 - 2⁴ = 13155205171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13155205187.

It is not a weakly prime, because it can be changed into another prime (13155205157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6577602593 + 6577602594.

It is an arithmetic number, because the mean of its divisors is an integer number (6577602594).

Almost surely, 2^13155205187 is an apocalyptic number.

13155205187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13155205187 is an equidigital number, since it uses as much as digits as its factorization.

13155205187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 38.

The spelling of 13155205187 in words is "thirteen billion, one hundred fifty-five million, two hundred five thousand, one hundred eighty-seven".