143907 has 4 divisors (see below), whose sum is σ = 191880. Its totient is φ = 95936.

The previous prime is 143881. The next prime is 143909. The reversal of 143907 is 709341.

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

It is a cyclic number.

It is not a de Polignac number, because 143907 - 2⁷ = 143779 is a prime.

It is a D-number.

143907 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143907.

It is not an unprimeable number, because it can be changed into a prime (143909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23982 + ... + 23987.

It is an arithmetic number, because the mean of its divisors is an integer number (47970).

2¹⁴³⁹⁰⁷ is an apocalyptic number.

143907 is a deficient number, since it is larger than the sum of its proper divisors (47973).

143907 is an equidigital number, since it uses as much as digits as its factorization.

143907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47972.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 143907 is about 379.3507611697. The cubic root of 143907 is about 52.4035417065.

The spelling of 143907 in words is "one hundred forty-three thousand, nine hundred seven".