345543043 has 2 divisors, whose sum is σ = 345543044. Its totient is φ = 345543042.

The previous prime is 345543041. The next prime is 345543047. The reversal of 345543043 is 340345543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345543043 - 2¹ = 345543041 is a prime.

Together with 345543041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 345542996 and 345543014.

It is not a weakly prime, because it can be changed into another prime (345543041) 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, 172771521 + 172771522.

It is an arithmetic number, because the mean of its divisors is an integer number (172771522).

Almost surely, 2^345543043 is an apocalyptic number.

345543043 is a deficient number, since it is larger than the sum of its proper divisors (1).

345543043 is an equidigital number, since it uses as much as digits as its factorization.

345543043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 31.

The square root of 345543043 is about 18588.7880992818. The cubic root of 345543043 is about 701.7257033682.

Adding to 345543043 its reverse (340345543), we get a palindrome (685888586).

The spelling of 345543043 in words is "three hundred forty-five million, five hundred forty-three thousand, forty-three".