143666607 has 16 divisors (see below), whose sum is σ = 219836672. Its totient is φ = 81751680.

The previous prime is 143666587. The next prime is 143666629. The reversal of 143666607 is 706666341.

It is a happy number.

It is not a de Polignac number, because 143666607 - 2¹⁴ = 143650223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143666207) 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 15 ways as a sum of consecutive naturals, for example, 9133 + ... + 19254.

It is an arithmetic number, because the mean of its divisors is an integer number (13739792).

Almost surely, 2^143666607 is an apocalyptic number.

143666607 is a deficient number, since it is larger than the sum of its proper divisors (76170065).

143666607 is a wasteful number, since it uses less digits than its factorization.

143666607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28638.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 143666607 is about 11986.1005752497. The cubic root of 143666607 is about 523.7434584693.

The spelling of 143666607 in words is "one hundred forty-three million, six hundred sixty-six thousand, six hundred seven".