343513 has 4 divisors (see below), whose sum is σ = 345060. Its totient is φ = 341968.

The previous prime is 343489. The next prime is 343517. The reversal of 343513 is 315343.

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

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 233289 = 332^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 343513 - 2⁵ = 343481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343517) 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, 370 + ... + 907.

It is an arithmetic number, because the mean of its divisors is an integer number (86265).

2³⁴³⁵¹³ is an apocalyptic number.

It is an amenable number.

343513 is a deficient number, since it is larger than the sum of its proper divisors (1547).

343513 is a wasteful number, since it uses less digits than its factorization.

343513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546.

The product of its digits is 540, while the sum is 19.

The square root of 343513 is about 586.0998208497. The cubic root of 343513 is about 70.0348805755.

Adding to 343513 its reverse (315343), we get a palindrome (658856).

The spelling of 343513 in words is "three hundred forty-three thousand, five hundred thirteen".