143546552161 has 8 divisors (see below), whose sum is σ = 157231518120. Its totient is φ = 130443925248.

The previous prime is 143546552153. The next prime is 143546552183. The reversal of 143546552161 is 161255645341.

It can be written as a sum of positive squares in 4 ways, for example, as 17521552161 + 126025000000 = 132369^2 + 355000^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143546552161 - 2³ = 143546552153 is a prime.

It is a super-2 number, since 2×143546552161² (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 (143546552111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145584246 + ... + 145585231.

It is an arithmetic number, because the mean of its divisors is an integer number (19653939765).

Almost surely, 2^143546552161 is an apocalyptic number.

It is an amenable number.

143546552161 is a deficient number, since it is larger than the sum of its proper divisors (13684965959).

143546552161 is a wasteful number, since it uses less digits than its factorization.

143546552161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291169523.

The product of its digits is 432000, while the sum is 43.

The spelling of 143546552161 in words is "one hundred forty-three billion, five hundred forty-six million, five hundred fifty-two thousand, one hundred sixty-one".