143891113 has 8 divisors (see below), whose sum is σ = 147954368. Its totient is φ = 139837104.

The previous prime is 143891101. The next prime is 143891159. The reversal of 143891113 is 311198341.

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 143891113 - 2⁵ = 143891081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143811113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39820 + ... + 43282.

It is an arithmetic number, because the mean of its divisors is an integer number (18494296).

Almost surely, 2^143891113 is an apocalyptic number.

It is an amenable number.

143891113 is a deficient number, since it is larger than the sum of its proper divisors (4063255).

143891113 is a wasteful number, since it uses less digits than its factorization.

143891113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

The product of its digits is 2592, while the sum is 31.

The square root of 143891113 is about 11995.4621836760. The cubic root of 143891113 is about 524.0161322559.

The spelling of 143891113 in words is "one hundred forty-three million, eight hundred ninety-one thousand, one hundred thirteen".