143369 has 4 divisors (see below), whose sum is σ = 144144. Its totient is φ = 142596.

The previous prime is 143357. The next prime is 143387. The reversal of 143369 is 963341.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 143369 - 2⁸ = 143113 is a prime.

It is a super-2 number, since 2×143369² = 41109340322, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143369.

It is not an unprimeable number, because it can be changed into a prime (143329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (36036).

2¹⁴³³⁶⁹ is an apocalyptic number.

It is an amenable number.

143369 is a deficient number, since it is larger than the sum of its proper divisors (775).

143369 is an equidigital number, since it uses as much as digits as its factorization.

143369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its digits is 1944, while the sum is 26.

The square root of 143369 is about 378.6409909136. The cubic root of 143369 is about 52.3381561632.

It can be divided in two parts, 143 and 369, that added together give a 9-th power (512 = 2⁹).

The spelling of 143369 in words is "one hundred forty-three thousand, three hundred sixty-nine".