143251421429 has 2 divisors, whose sum is σ = 143251421430. Its totient is φ = 143251421428.

The previous prime is 143251421419. The next prime is 143251421459. The reversal of 143251421429 is 924124152341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114259548529 + 28991872900 = 338023^2 + 170270^2 .

It is a cyclic number.

It is not a de Polignac number, because 143251421429 - 2⁴ = 143251421413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143251421392 and 143251421401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143251421419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71625710714 + 71625710715.

It is an arithmetic number, because the mean of its divisors is an integer number (71625710715).

Almost surely, 2^143251421429 is an apocalyptic number.

It is an amenable number.

143251421429 is a deficient number, since it is larger than the sum of its proper divisors (1).

143251421429 is an equidigital number, since it uses as much as digits as its factorization.

143251421429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The spelling of 143251421429 in words is "one hundred forty-three billion, two hundred fifty-one million, four hundred twenty-one thousand, four hundred twenty-nine".