143341321 has 8 divisors (see below), whose sum is σ = 145578888. Its totient is φ = 141120000.

The previous prime is 143341307. The next prime is 143341327. The reversal of 143341321 is 123143341.

143341321 = T₄₃₈ + T₄₃₉ + ... + T₉₈₀.

It can be written as a sum of positive squares in 4 ways, for example, as 10169721 + 133171600 = 3189^2 + 11540^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143341321 - 2¹⁵ = 143308553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143341292 and 143341301.

It is not an unprimeable number, because it can be changed into a prime (143341327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14361 + ... + 22201.

It is an arithmetic number, because the mean of its divisors is an integer number (18197361).

Almost surely, 2^143341321 is an apocalyptic number.

It is an amenable number.

143341321 is a deficient number, since it is larger than the sum of its proper divisors (2237567).

143341321 is a wasteful number, since it uses less digits than its factorization.

143341321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123.

The product of its digits is 864, while the sum is 22.

The square root of 143341321 is about 11972.5235852764. The cubic root of 143341321 is about 523.3478778960.

Adding to 143341321 its reverse (123143341), we get a palindrome (266484662).

The spelling of 143341321 in words is "one hundred forty-three million, three hundred forty-one thousand, three hundred twenty-one".