143413643 has 4 divisors (see below), whose sum is σ = 146748888. Its totient is φ = 140078400.

The previous prime is 143413631. The next prime is 143413661. The reversal of 143413643 is 346314341.

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 143413643 - 2¹⁸ = 143151499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143413603) 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, 1667558 + ... + 1667643.

It is an arithmetic number, because the mean of its divisors is an integer number (36687222).

Almost surely, 2^143413643 is an apocalyptic number.

143413643 is a deficient number, since it is larger than the sum of its proper divisors (3335245).

143413643 is an equidigital number, since it uses as much as digits as its factorization.

143413643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335244.

The product of its digits is 10368, while the sum is 29.

The square root of 143413643 is about 11975.5435367252. The cubic root of 143413643 is about 523.4358804370.

Adding to 143413643 its reverse (346314341), we get a palindrome (489727984).

The spelling of 143413643 in words is "one hundred forty-three million, four hundred thirteen thousand, six hundred forty-three".