143447004081471 has 4 divisors (see below), whose sum is σ = 191262672108632. Its totient is φ = 95631336054312.

The previous prime is 143447004081391. The next prime is 143447004081473. The reversal of 143447004081471 is 174180400744341.

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

It is not a de Polignac number, because 143447004081471 - 2¹⁵ = 143447004048703 is a prime.

It is a super-3 number, since 3×143447004081471³ (a number of 43 digits) contains 333 as substring.

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 143447004081471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143447004081473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23907834013576 + ... + 23907834013581.

It is an arithmetic number, because the mean of its divisors is an integer number (47815668027158).

Almost surely, 2^{143447004081471} is an apocalyptic number.

143447004081471 is a deficient number, since it is larger than the sum of its proper divisors (47815668027161).

143447004081471 is an equidigital number, since it uses as much as digits as its factorization.

143447004081471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47815668027160.

The product of its (nonzero) digits is 1204224, while the sum is 48.

The spelling of 143447004081471 in words is "one hundred forty-three trillion, four hundred forty-seven billion, four million, eighty-one thousand, four hundred seventy-one".