143316427 has 4 divisors (see below), whose sum is σ = 149547600. Its totient is φ = 137085256.

The previous prime is 143316421. The next prime is 143316457. The reversal of 143316427 is 724613341.

143316427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724613341 = 6229 ⋅116329.

It is a cyclic number.

It is not a de Polignac number, because 143316427 - 2¹⁵ = 143283659 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143316421) 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, 3115552 + ... + 3115597.

It is an arithmetic number, because the mean of its divisors is an integer number (37386900).

Almost surely, 2^143316427 is an apocalyptic number.

143316427 is a deficient number, since it is larger than the sum of its proper divisors (6231173).

143316427 is an equidigital number, since it uses as much as digits as its factorization.

143316427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231172.

The product of its digits is 12096, while the sum is 31.

The square root of 143316427 is about 11971.4839096914. The cubic root of 143316427 is about 523.3175796395.

Adding to 143316427 its reverse (724613341), we get a palindrome (867929768).

The spelling of 143316427 in words is "one hundred forty-three million, three hundred sixteen thousand, four hundred twenty-seven".