143121164 has 12 divisors (see below), whose sum is σ = 265195224. Its totient is φ = 67351104.

The previous prime is 143121163. The next prime is 143121169. The reversal of 143121164 is 461121341.

It is not an unprimeable number, because it can be changed into a prime (143121163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052294 + ... + 1052429.

It is an arithmetic number, because the mean of its divisors is an integer number (22099602).

Almost surely, 2^143121164 is an apocalyptic number.

It is an amenable number.

143121164 is a deficient number, since it is larger than the sum of its proper divisors (122074060).

143121164 is a wasteful number, since it uses less digits than its factorization.

143121164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104744 (or 2104742 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 143121164 is about 11963.3257917688. The cubic root of 143121164 is about 523.0798050746.

The spelling of 143121164 in words is "one hundred forty-three million, one hundred twenty-one thousand, one hundred sixty-four".