343340149 has 2 divisors, whose sum is σ = 343340150. Its totient is φ = 343340148.

The previous prime is 343340099. The next prime is 343340171. The reversal of 343340149 is 941043343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190026225 + 153313924 = 13785^2 + 12382^2 .

It is a cyclic number.

It is not a de Polignac number, because 343340149 - 2²⁷ = 209122421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343340149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343340189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171670074 + 171670075.

It is an arithmetic number, because the mean of its divisors is an integer number (171670075).

Almost surely, 2^343340149 is an apocalyptic number.

It is an amenable number.

343340149 is a deficient number, since it is larger than the sum of its proper divisors (1).

343340149 is an equidigital number, since it uses as much as digits as its factorization.

343340149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 343340149 is about 18529.4400616964. The cubic root of 343340149 is about 700.2313174295.

The spelling of 343340149 in words is "three hundred forty-three million, three hundred forty thousand, one hundred forty-nine".