345214343 has 2 divisors, whose sum is σ = 345214344. Its totient is φ = 345214342.

The previous prime is 345214271. The next prime is 345214349. The reversal of 345214343 is 343412543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345214343 - 2¹⁸ = 344952199 is a prime.

It is a super-2 number, since 2×345214343² = 238345885225843298, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345214349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172607171 + 172607172.

It is an arithmetic number, because the mean of its divisors is an integer number (172607172).

Almost surely, 2^345214343 is an apocalyptic number.

345214343 is a deficient number, since it is larger than the sum of its proper divisors (1).

345214343 is an equidigital number, since it uses as much as digits as its factorization.

345214343 is an evil number, because the sum of its binary digits is even.

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

The square root of 345214343 is about 18579.9446446969. The cubic root of 345214343 is about 701.5031257762.

Adding to 345214343 its reverse (343412543), we get a palindrome (688626886).

The spelling of 345214343 in words is "three hundred forty-five million, two hundred fourteen thousand, three hundred forty-three".