344240129 has 2 divisors, whose sum is σ = 344240130. Its totient is φ = 344240128.

The previous prime is 344240101. The next prime is 344240147. The reversal of 344240129 is 921042443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269452225 + 74787904 = 16415^2 + 8648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344240129 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (344240329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172120064 + 172120065.

It is an arithmetic number, because the mean of its divisors is an integer number (172120065).

Almost surely, 2^344240129 is an apocalyptic number.

It is an amenable number.

344240129 is a deficient number, since it is larger than the sum of its proper divisors (1).

344240129 is an equidigital number, since it uses as much as digits as its factorization.

344240129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 344240129 is about 18553.7093056887. The cubic root of 344240129 is about 700.8426104882.

The spelling of 344240129 in words is "three hundred forty-four million, two hundred forty thousand, one hundred twenty-nine".