345303443 has 2 divisors, whose sum is σ = 345303444. Its totient is φ = 345303442.

The previous prime is 345303421. The next prime is 345303457. The reversal of 345303443 is 344303543.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (344303543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345303443 - 2⁸ = 345303187 is a prime.

It is not a weakly prime, because it can be changed into another prime (345303403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172651721 + 172651722.

It is an arithmetic number, because the mean of its divisors is an integer number (172651722).

Almost surely, 2^345303443 is an apocalyptic number.

345303443 is a deficient number, since it is larger than the sum of its proper divisors (1).

345303443 is an equidigital number, since it uses as much as digits as its factorization.

345303443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 29.

The square root of 345303443 is about 18582.3422366504. The cubic root of 345303443 is about 701.5634733574.

Adding to 345303443 its reverse (344303543), we get a palindrome (689606986).

It can be divided in two parts, 34530 and 3443, that added together give a palindrome (37973).

The spelling of 345303443 in words is "three hundred forty-five million, three hundred three thousand, four hundred forty-three".