143521166 has 8 divisors (see below), whose sum is σ = 218811144. Its totient is φ = 70584120.

The previous prime is 143521159. The next prime is 143521171. The reversal of 143521166 is 661125341.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588080 + ... + 588323.

It is an arithmetic number, because the mean of its divisors is an integer number (27351393).

Almost surely, 2^143521166 is an apocalyptic number.

143521166 is a deficient number, since it is larger than the sum of its proper divisors (75289978).

143521166 is a wasteful number, since it uses less digits than its factorization.

143521166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176466.

The product of its digits is 4320, while the sum is 29.

The square root of 143521166 is about 11980.0319699073. The cubic root of 143521166 is about 523.5666614314.

The spelling of 143521166 in words is "one hundred forty-three million, five hundred twenty-one thousand, one hundred sixty-six".