143353440169 has 2 divisors, whose sum is σ = 143353440170. Its totient is φ = 143353440168.

The previous prime is 143353440121. The next prime is 143353440199. The reversal of 143353440169 is 961044353341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113089618944 + 30263821225 = 336288^2 + 173965^2 .

It is a cyclic number.

It is not a de Polignac number, because 143353440169 - 2²⁷ = 143219222441 is a prime.

It is a super-2 number, since 2×143353440169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143353440199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71676720084 + 71676720085.

It is an arithmetic number, because the mean of its divisors is an integer number (71676720085).

Almost surely, 2^143353440169 is an apocalyptic number.

It is an amenable number.

143353440169 is a deficient number, since it is larger than the sum of its proper divisors (1).

143353440169 is an equidigital number, since it uses as much as digits as its factorization.

143353440169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 143353440169 in words is "one hundred forty-three billion, three hundred fifty-three million, four hundred forty thousand, one hundred sixty-nine".