345146443 has 2 divisors, whose sum is σ = 345146444. Its totient is φ = 345146442.

The previous prime is 345146437. The next prime is 345146491. The reversal of 345146443 is 344641543.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345146443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345146399 and 345146408.

It is not a weakly prime, because it can be changed into another prime (345146743) 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, 172573221 + 172573222.

It is an arithmetic number, because the mean of its divisors is an integer number (172573222).

Almost surely, 2^345146443 is an apocalyptic number.

345146443 is a deficient number, since it is larger than the sum of its proper divisors (1).

345146443 is an equidigital number, since it uses as much as digits as its factorization.

345146443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 34.

The square root of 345146443 is about 18578.1173158100. The cubic root of 345146443 is about 701.4571300188.

Adding to 345146443 its reverse (344641543), we get a palindrome (689787986).

It can be divided in two parts, 3451 and 46443, that added together give a palindrome (49894).

The spelling of 345146443 in words is "three hundred forty-five million, one hundred forty-six thousand, four hundred forty-three".