143989443101897 has 2 divisors, whose sum is σ = 143989443101898. Its totient is φ = 143989443101896.

The previous prime is 143989443101893. The next prime is 143989443101899. The reversal of 143989443101897 is 798101344989341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95557252564921 + 48432190536976 = 9775339^2 + 6959324^2 .

It is a cyclic number.

It is not a de Polignac number, because 143989443101897 - 2² = 143989443101893 is a prime.

Together with 143989443101899, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143989443101897.

It is not a weakly prime, because it can be changed into another prime (143989443101891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71994721550948 + 71994721550949.

It is an arithmetic number, because the mean of its divisors is an integer number (71994721550949).

Almost surely, 2^{143989443101897} is an apocalyptic number.

It is an amenable number.

143989443101897 is a deficient number, since it is larger than the sum of its proper divisors (1).

143989443101897 is an equidigital number, since it uses as much as digits as its factorization.

143989443101897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188116992, while the sum is 71.

The spelling of 143989443101897 in words is "one hundred forty-three trillion, nine hundred eighty-nine billion, four hundred forty-three million, one hundred one thousand, eight hundred ninety-seven".