143199988 has 12 divisors (see below), whose sum is σ = 250722052. Its totient is φ = 71565120.

The previous prime is 143199977. The next prime is 143199989. The reversal of 143199988 is 889991341.

143199988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 84860944 + 58339044 = 9212^2 + 7638^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143199989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978 + ... + 17038.

Almost surely, 2^143199988 is an apocalyptic number.

It is an amenable number.

143199988 is a deficient number, since it is larger than the sum of its proper divisors (107522064).

143199988 is a wasteful number, since it uses less digits than its factorization.

143199988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17442 (or 17440 counting only the distinct ones).

The product of its digits is 559872, while the sum is 52.

The square root of 143199988 is about 11966.6197399266. The cubic root of 143199988 is about 523.1758162080.

The spelling of 143199988 in words is "one hundred forty-three million, one hundred ninety-nine thousand, nine hundred eighty-eight".