2909129 has 2 divisors, whose sum is σ = 2909130. Its totient is φ = 2909128.

The previous prime is 2909119. The next prime is 2909141. The reversal of 2909129 is 9219092.

2909129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1817104 + 1092025 = 1348^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2909129 - 2¹² = 2905033 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2909095 and 2909104.

It is not a weakly prime, because it can be changed into another prime (2909119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1454564 + 1454565.

It is an arithmetic number, because the mean of its divisors is an integer number (1454565).

2^2909129 is an apocalyptic number.

It is an amenable number.

2909129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2909129 is an equidigital number, since it uses as much as digits as its factorization.

2909129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 2909129 is about 1705.6168971959. The cubic root of 2909129 is about 142.7537941561.

The spelling of 2909129 in words is "two million, nine hundred nine thousand, one hundred twenty-nine".