343541 has 4 divisors (see below), whose sum is σ = 374784. Its totient is φ = 312300.

The previous prime is 343531. The next prime is 343543. The reversal of 343541 is 145343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15605 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (93696).

2³⁴³⁵⁴¹ is an apocalyptic number.

It is an amenable number.

343541 is a deficient number, since it is larger than the sum of its proper divisors (31243).

343541 is a wasteful number, since it uses less digits than its factorization.

343541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31242.

The product of its digits is 720, while the sum is 20.

The square root of 343541 is about 586.1237070790. The cubic root of 343541 is about 70.0367833889.

Adding to 343541 its reverse (145343), we get a palindrome (488884).

The spelling of 343541 in words is "three hundred forty-three thousand, five hundred forty-one".