343109 has 4 divisors (see below), whose sum is σ = 369516. Its totient is φ = 316704.

The previous prime is 343087. The next prime is 343127. The reversal of 343109 is 901343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901343 = 59 ⋅15277.

It can be written as a sum of positive squares in 2 ways, for example, as 96100 + 247009 = 310^2 + 497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343109.

It is not an unprimeable number, because it can be changed into a prime (343169) 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, 13184 + ... + 13209.

It is an arithmetic number, because the mean of its divisors is an integer number (92379).

2³⁴³¹⁰⁹ is an apocalyptic number.

It is an amenable number.

343109 is a deficient number, since it is larger than the sum of its proper divisors (26407).

343109 is a wasteful number, since it uses less digits than its factorization.

343109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26406.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 343109 is about 585.7550682666. The cubic root of 343109 is about 70.0074141807.

The spelling of 343109 in words is "three hundred forty-three thousand, one hundred nine".