143644004561 has 8 divisors (see below), whose sum is σ = 146580508224. Its totient is φ = 140715880240.

The previous prime is 143644004509. The next prime is 143644004579. The reversal of 143644004561 is 165400446341.

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 143644004561 - 2³⁴ = 126464135377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143644004591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060195 + ... + 2128776.

It is an arithmetic number, because the mean of its divisors is an integer number (18322563528).

Almost surely, 2^143644004561 is an apocalyptic number.

It is an amenable number.

143644004561 is a deficient number, since it is larger than the sum of its proper divisors (2936503663).

143644004561 is an equidigital number, since it uses as much as digits as its factorization.

143644004561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189671.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 143644004561 in words is "one hundred forty-three billion, six hundred forty-four million, four thousand, five hundred sixty-one".