13112129 has 2 divisors, whose sum is σ = 13112130. Its totient is φ = 13112128.

The previous prime is 13112111. The next prime is 13112153. The reversal of 13112129 is 92121131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 672400 = 3527^2 + 820^2 .

It is an emirp because it is prime and its reverse (92121131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13112129 - 2¹² = 13108033 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13112129.

It is not a weakly prime, because it can be changed into another prime (13112159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556064 + 6556065.

It is an arithmetic number, because the mean of its divisors is an integer number (6556065).

Almost surely, 2^13112129 is an apocalyptic number.

It is an amenable number.

13112129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112129 is an equidigital number, since it uses as much as digits as its factorization.

13112129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 20.

The square root of 13112129 is about 3621.0673840734. The cubic root of 13112129 is about 235.8075672078.

The spelling of 13112129 in words is "thirteen million, one hundred twelve thousand, one hundred twenty-nine".