143625545221 has 4 divisors (see below), whose sum is σ = 143626324492. Its totient is φ = 143624765952.

The previous prime is 143625545149. The next prime is 143625545227. The reversal of 143625545221 is 122545526341.

143625545221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 82374740100 + 61250805121 = 287010^2 + 247489^2 .

It is a cyclic number.

It is not a de Polignac number, because 143625545221 - 2³³ = 135035610629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143625545227) 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 3 ways as a sum of consecutive naturals, for example, 59071 + ... + 539203.

It is an arithmetic number, because the mean of its divisors is an integer number (35906581123).

Almost surely, 2^143625545221 is an apocalyptic number.

It is an amenable number.

143625545221 is a deficient number, since it is larger than the sum of its proper divisors (779271).

143625545221 is an equidigital number, since it uses as much as digits as its factorization.

143625545221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779270.

The product of its digits is 288000, while the sum is 40.

The spelling of 143625545221 in words is "one hundred forty-three billion, six hundred twenty-five million, five hundred forty-five thousand, two hundred twenty-one".