143543417161 has 4 divisors (see below), whose sum is σ = 143560455300. Its totient is φ = 143526379024.

The previous prime is 143543417137. The next prime is 143543417179. The reversal of 143543417161 is 161714345341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60336553225 + 83206863936 = 245635^2 + 288456^2 .

It is a cyclic number.

It is not a de Polignac number, because 143543417161 - 2²⁵ = 143509862729 is a prime.

It is a super-2 number, since 2×143543417161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143543417111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8506426 + ... + 8523283.

It is an arithmetic number, because the mean of its divisors is an integer number (35890113825).

Almost surely, 2^143543417161 is an apocalyptic number.

It is an amenable number.

143543417161 is a deficient number, since it is larger than the sum of its proper divisors (17038139).

143543417161 is an equidigital number, since it uses as much as digits as its factorization.

143543417161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17038138.

The product of its digits is 120960, while the sum is 40.

The spelling of 143543417161 in words is "one hundred forty-three billion, five hundred forty-three million, four hundred seventeen thousand, one hundred sixty-one".