143242166 has 4 divisors (see below), whose sum is σ = 214863252. Its totient is φ = 71621082.

The previous prime is 143242163. The next prime is 143242201. The reversal of 143242166 is 661242341.

143242166 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.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143242163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35810540 + ... + 35810543.

It is an arithmetic number, because the mean of its divisors is an integer number (53715813).

Almost surely, 2^143242166 is an apocalyptic number.

143242166 is a deficient number, since it is larger than the sum of its proper divisors (71621086).

143242166 is an equidigital number, since it uses as much as digits as its factorization.

143242166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71621085.

The product of its digits is 6912, while the sum is 29.

The square root of 143242166 is about 11968.3819290663. The cubic root of 143242166 is about 523.2271764159.

The spelling of 143242166 in words is "one hundred forty-three million, two hundred forty-two thousand, one hundred sixty-six".