143670045891 has 4 divisors (see below), whose sum is σ = 191560061192. Its totient is φ = 95780030592.

The previous prime is 143670045853. The next prime is 143670045913. The reversal of 143670045891 is 198540076341.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 143670045891 - 2⁷ = 143670045763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143670045891.

It is not an unprimeable number, because it can be changed into a prime (143670045191) 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, 23945007646 + ... + 23945007651.

It is an arithmetic number, because the mean of its divisors is an integer number (47890015298).

Almost surely, 2^143670045891 is an apocalyptic number.

143670045891 is a deficient number, since it is larger than the sum of its proper divisors (47890015301).

143670045891 is an equidigital number, since it uses as much as digits as its factorization.

143670045891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47890015300.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 143670045891 in words is "one hundred forty-three billion, six hundred seventy million, forty-five thousand, eight hundred ninety-one".