143441665931 has 16 divisors (see below), whose sum is σ = 147727942560. Its totient is φ = 139222087680.

The previous prime is 143441665907. The next prime is 143441665937. The reversal of 143441665931 is 139566144341.

143441665931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143441665931 - 2³⁴ = 126261796747 is a prime.

It is a super-2 number, since 2×143441665931² (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 (143441665937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1791821 + ... + 1870161.

It is an arithmetic number, because the mean of its divisors is an integer number (9232996410).

Almost surely, 2^143441665931 is an apocalyptic number.

143441665931 is a deficient number, since it is larger than the sum of its proper divisors (4286276629).

143441665931 is a wasteful number, since it uses less digits than its factorization.

143441665931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78766.

The product of its digits is 933120, while the sum is 47.

The spelling of 143441665931 in words is "one hundred forty-three billion, four hundred forty-one million, six hundred sixty-five thousand, nine hundred thirty-one".