343951313 has 2 divisors, whose sum is σ = 343951314. Its totient is φ = 343951312.

The previous prime is 343951301. The next prime is 343951379. The reversal of 343951313 is 313159343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322310209 + 21641104 = 17953^2 + 4652^2 .

It is a cyclic number.

It is not a de Polignac number, because 343951313 - 2⁶ = 343951249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343951313.

It is not a weakly prime, because it can be changed into another prime (343951213) 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, 171975656 + 171975657.

It is an arithmetic number, because the mean of its divisors is an integer number (171975657).

Almost surely, 2^343951313 is an apocalyptic number.

It is an amenable number.

343951313 is a deficient number, since it is larger than the sum of its proper divisors (1).

343951313 is an equidigital number, since it uses as much as digits as its factorization.

343951313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 32.

The square root of 343951313 is about 18545.9244309902. The cubic root of 343951313 is about 700.6465543275.

The spelling of 343951313 in words is "three hundred forty-three million, nine hundred fifty-one thousand, three hundred thirteen".