143347 has 4 divisors (see below), whose sum is σ = 148320. Its totient is φ = 138376.

The previous prime is 143333. The next prime is 143357. The reversal of 143347 is 743341.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143347 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (143357) 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, 2443 + ... + 2500.

It is an arithmetic number, because the mean of its divisors is an integer number (37080).

2¹⁴³³⁴⁷ is an apocalyptic number.

143347 is a deficient number, since it is larger than the sum of its proper divisors (4973).

143347 is an equidigital number, since it uses as much as digits as its factorization.

143347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972.

The product of its digits is 1008, while the sum is 22.

The square root of 143347 is about 378.6119385334. The cubic root of 143347 is about 52.3354789263.

Adding to 143347 its reverse (743341), we get a palindrome (886688).

It can be divided in two parts, 14334 and 7, that added together give a palindrome (14341).

The spelling of 143347 in words is "one hundred forty-three thousand, three hundred forty-seven", and thus it is an iban number.