340129 has 2 divisors, whose sum is σ = 340130. Its totient is φ = 340128.

The previous prime is 340127. The next prime is 340169. The reversal of 340129 is 921043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216225 + 123904 = 465^2 + 352^2 .

It is a cyclic number.

It is not a de Polignac number, because 340129 - 2¹ = 340127 is a prime.

Together with 340127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170064 + 170065.

It is an arithmetic number, because the mean of its divisors is an integer number (170065).

2³⁴⁰¹²⁹ is an apocalyptic number.

It is an amenable number.

340129 is a deficient number, since it is larger than the sum of its proper divisors (1).

340129 is an equidigital number, since it uses as much as digits as its factorization.

340129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 340129 is about 583.2057955816. The cubic root of 340129 is about 69.8041464082.

The spelling of 340129 in words is "three hundred forty thousand, one hundred twenty-nine".