143420253589 has 2 divisors, whose sum is σ = 143420253590. Its totient is φ = 143420253588.

The previous prime is 143420253569. The next prime is 143420253631. The reversal of 143420253589 is 985352024341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143362948689 + 57304900 = 378633^2 + 7570^2 .

It is a cyclic number.

It is not a de Polignac number, because 143420253589 - 2⁷ = 143420253461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143420253569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71710126794 + 71710126795.

It is an arithmetic number, because the mean of its divisors is an integer number (71710126795).

Almost surely, 2^143420253589 is an apocalyptic number.

It is an amenable number.

143420253589 is a deficient number, since it is larger than the sum of its proper divisors (1).

143420253589 is an equidigital number, since it uses as much as digits as its factorization.

143420253589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 143420253589 in words is "one hundred forty-three billion, four hundred twenty million, two hundred fifty-three thousand, five hundred eighty-nine".