143332666 has 4 divisors (see below), whose sum is σ = 214999002. Its totient is φ = 71666332.

The previous prime is 143332649. The next prime is 143332681. The reversal of 143332666 is 666233341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83192641 + 60140025 = 9121^2 + 7755^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35833165 + ... + 35833168.

Almost surely, 2^143332666 is an apocalyptic number.

143332666 is a deficient number, since it is larger than the sum of its proper divisors (71666336).

143332666 is an equidigital number, since it uses as much as digits as its factorization.

143332666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71666335.

The product of its digits is 46656, while the sum is 34.

The square root of 143332666 is about 11972.1621272016. The cubic root of 143332666 is about 523.3373443736.

The spelling of 143332666 in words is "one hundred forty-three million, three hundred thirty-two thousand, six hundred sixty-six".