408143 has 4 divisors (see below), whose sum is σ = 413808. Its totient is φ = 402480.

The previous prime is 408137. The next prime is 408169. The reversal of 408143 is 341804.

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

It is a cyclic number.

It is not a de Polignac number, because 408143 - 2⁴ = 408127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (103452).

2⁴⁰⁸¹⁴³ is an apocalyptic number.

408143 is a deficient number, since it is larger than the sum of its proper divisors (5665).

408143 is an equidigital number, since it uses as much as digits as its factorization.

408143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5664.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 408143 is about 638.8607046923. The cubic root of 408143 is about 74.1772594950.

Adding to 408143 its reverse (341804), we get a palindrome (749947).

The spelling of 408143 in words is "four hundred eight thousand, one hundred forty-three".