143115020447 has 6 divisors (see below), whose sum is σ = 166480738128. Its totient is φ = 122670017484.

The previous prime is 143115020417. The next prime is 143115020449. The reversal of 143115020447 is 744020511341.

It is not a de Polignac number, because 143115020447 - 2¹⁰ = 143115019423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143115020449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1460357303 + ... + 1460357400.

It is an arithmetic number, because the mean of its divisors is an integer number (27746789688).

Almost surely, 2^143115020447 is an apocalyptic number.

143115020447 is a deficient number, since it is larger than the sum of its proper divisors (23365717681).

143115020447 is an equidigital number, since it uses as much as digits as its factorization.

143115020447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920714717 (or 2920714710 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 143115020447 its reverse (744020511341), we get a palindrome (887135531788).

The spelling of 143115020447 in words is "one hundred forty-three billion, one hundred fifteen million, twenty thousand, four hundred forty-seven".