343244581 has 2 divisors, whose sum is σ = 343244582. Its totient is φ = 343244580.

The previous prime is 343244563. The next prime is 343244639. The reversal of 343244581 is 185442343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250430625 + 92813956 = 15825^2 + 9634^2 .

It is an emirp because it is prime and its reverse (185442343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343244581 - 2⁵ = 343244549 is a prime.

It is a super-2 number, since 2×343244581² = 235633684771731122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343244081) 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, 171622290 + 171622291.

It is an arithmetic number, because the mean of its divisors is an integer number (171622291).

Almost surely, 2^343244581 is an apocalyptic number.

It is an amenable number.

343244581 is a deficient number, since it is larger than the sum of its proper divisors (1).

343244581 is an equidigital number, since it uses as much as digits as its factorization.

343244581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 34.

The square root of 343244581 is about 18526.8610671101. The cubic root of 343244581 is about 700.1663421014.

The spelling of 343244581 in words is "three hundred forty-three million, two hundred forty-four thousand, five hundred eighty-one".