344345231 has 2 divisors, whose sum is σ = 344345232. Its totient is φ = 344345230.

The previous prime is 344345203. The next prime is 344345233. The reversal of 344345231 is 132543443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344345231 - 2¹⁸ = 344083087 is a prime.

It is a super-2 number, since 2×344345231² = 237147276224886722, which contains 22 as substring.

Together with 344345233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 344345194 and 344345203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344345233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172172615 + 172172616.

It is an arithmetic number, because the mean of its divisors is an integer number (172172616).

Almost surely, 2^344345231 is an apocalyptic number.

344345231 is a deficient number, since it is larger than the sum of its proper divisors (1).

344345231 is an equidigital number, since it uses as much as digits as its factorization.

344345231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 29.

The square root of 344345231 is about 18556.5414611667. The cubic root of 344345231 is about 700.9139293715.

Adding to 344345231 its reverse (132543443), we get a palindrome (476888674).

The spelling of 344345231 in words is "three hundred forty-four million, three hundred forty-five thousand, two hundred thirty-one".