143327813 has 4 divisors (see below), whose sum is σ = 143718720. Its totient is φ = 142936908.

The previous prime is 143327809. The next prime is 143327819. The reversal of 143327813 is 318723341.

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 an emirpimes, since its reverse is a distinct semiprime: 318723341 = 167 ⋅1908523.

It is a cyclic number.

It is not a de Polignac number, because 143327813 - 2² = 143327809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 143327813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143327819) 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, 194903 + ... + 195636.

It is an arithmetic number, because the mean of its divisors is an integer number (35929680).

Almost surely, 2^143327813 is an apocalyptic number.

It is an amenable number.

143327813 is a deficient number, since it is larger than the sum of its proper divisors (390907).

143327813 is an equidigital number, since it uses as much as digits as its factorization.

143327813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390906.

The product of its digits is 12096, while the sum is 32.

The square root of 143327813 is about 11971.9594469744. The cubic root of 143327813 is about 523.3314378698.

The spelling of 143327813 in words is "one hundred forty-three million, three hundred twenty-seven thousand, eight hundred thirteen".