345543 has 16 divisors (see below), whose sum is σ = 518016.
Its totient is φ = 203040.
The previous prime is 345533. The next prime is 345547.
It is a happy number.
345543 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 345543 - 25 = 345511 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (345547) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080 + ... + 1362.
It is an arithmetic number, because the mean of its divisors is an integer number (32376).
2345543 is an apocalyptic number.
345543 is a gapful number since it is divisible by the number (33) formed by its first and last digit.
345543 is a deficient number, since it is larger than the sum of its proper divisors (172473).
345543 is a wasteful number, since it uses less digits than its factorization.
345543 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 334.
The product of its digits is 3600, while the sum is 24.
The square root of 345543 is about 587.8290567844.
The cubic root of 345543 is about 70.1725674260.
It can be divided in two parts, 345 and 543, that added together give a palindrome (888).
The spelling of 345543 in words is "three hundred forty-five thousand, five hundred forty-three".