143955791129 has 2 divisors, whose sum is σ = 143955791130. Its totient is φ = 143955791128.

The previous prime is 143955791069. The next prime is 143955791197. The reversal of 143955791129 is 921197559341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105123147529 + 38832643600 = 324227^2 + 197060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143955791129 is a prime.

It is a super-3 number, since 3×143955791129³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (143955791929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71977895564 + 71977895565.

It is an arithmetic number, because the mean of its divisors is an integer number (71977895565).

Almost surely, 2^143955791129 is an apocalyptic number.

It is an amenable number.

143955791129 is a deficient number, since it is larger than the sum of its proper divisors (1).

143955791129 is an equidigital number, since it uses as much as digits as its factorization.

143955791129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 56.

The spelling of 143955791129 in words is "one hundred forty-three billion, nine hundred fifty-five million, seven hundred ninety-one thousand, one hundred twenty-nine".