143666017 has 4 divisors (see below), whose sum is σ = 156726576. Its totient is φ = 130605460.

The previous prime is 143665999. The next prime is 143666051. The reversal of 143666017 is 710666341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143666017 - 2²⁷ = 9448289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143666057) 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, 6530263 + ... + 6530284.

It is an arithmetic number, because the mean of its divisors is an integer number (39181644).

Almost surely, 2^143666017 is an apocalyptic number.

It is an amenable number.

143666017 is a deficient number, since it is larger than the sum of its proper divisors (13060559).

143666017 is a wasteful number, since it uses less digits than its factorization.

143666017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13060558.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 143666017 is about 11986.0759633835. The cubic root of 143666017 is about 523.7427415106.

The spelling of 143666017 in words is "one hundred forty-three million, six hundred sixty-six thousand, seventeen".