345969543 has 4 divisors (see below), whose sum is σ = 461292728. Its totient is φ = 230646360.

The previous prime is 345969511. The next prime is 345969551.

345969543 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 345969543 - 2⁵ = 345969511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345969492 and 345969501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345969563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57661588 + ... + 57661593.

It is an arithmetic number, because the mean of its divisors is an integer number (115323182).

Almost surely, 2^345969543 is an apocalyptic number.

345969543 is a deficient number, since it is larger than the sum of its proper divisors (115323185).

345969543 is a wasteful number, since it uses less digits than its factorization.

345969543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115323184.

The product of its digits is 1749600, while the sum is 48.

The square root of 345969543 is about 18600.2565304890. The cubic root of 345969543 is about 702.0142954532.

The spelling of 345969543 in words is "three hundred forty-five million, nine hundred sixty-nine thousand, five hundred forty-three".