341405209 has 2 divisors, whose sum is σ = 341405210. Its totient is φ = 341405208.

The previous prime is 341405173. The next prime is 341405213. The reversal of 341405209 is 902504143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263347984 + 78057225 = 16228^2 + 8835^2 .

It is a cyclic number.

It is not a de Polignac number, because 341405209 - 2¹⁵ = 341372441 is a prime.

It is not a weakly prime, because it can be changed into another prime (341405219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170702604 + 170702605.

It is an arithmetic number, because the mean of its divisors is an integer number (170702605).

Almost surely, 2^341405209 is an apocalyptic number.

It is an amenable number.

341405209 is a deficient number, since it is larger than the sum of its proper divisors (1).

341405209 is an equidigital number, since it uses as much as digits as its factorization.

341405209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 341405209 is about 18477.1537039664. The cubic root of 341405209 is about 698.9134223918.

The spelling of 341405209 in words is "three hundred forty-one million, four hundred five thousand, two hundred nine".