13149731227 has 2 divisors, whose sum is σ = 13149731228. Its totient is φ = 13149731226.

The previous prime is 13149731201. The next prime is 13149731317. The reversal of 13149731227 is 72213794131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13149731227 - 2¹⁵ = 13149698459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13149731227.

It is not a weakly prime, because it can be changed into another prime (13149731627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6574865613 + 6574865614.

It is an arithmetic number, because the mean of its divisors is an integer number (6574865614).

Almost surely, 2^13149731227 is an apocalyptic number.

13149731227 is a deficient number, since it is larger than the sum of its proper divisors (1).

13149731227 is an equidigital number, since it uses as much as digits as its factorization.

13149731227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The spelling of 13149731227 in words is "thirteen billion, one hundred forty-nine million, seven hundred thirty-one thousand, two hundred twenty-seven".