345565543 has 2 divisors, whose sum is σ = 345565544. Its totient is φ = 345565542.

The previous prime is 345565531. The next prime is 345565601.

345565543 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 345565543 - 2²⁵ = 312011111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345565496 and 345565505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345565043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172782771 + 172782772.

It is an arithmetic number, because the mean of its divisors is an integer number (172782772).

Almost surely, 2^345565543 is an apocalyptic number.

345565543 is a deficient number, since it is larger than the sum of its proper divisors (1).

345565543 is an equidigital number, since it uses as much as digits as its factorization.

345565543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540000, while the sum is 40.

The square root of 345565543 is about 18589.3932929507. The cubic root of 345565543 is about 701.7409339702.

The spelling of 345565543 in words is "three hundred forty-five million, five hundred sixty-five thousand, five hundred forty-three".