143640006 has 16 divisors (see below), whose sum is σ = 287436864. Its totient is φ = 47853864.

The previous prime is 143639963. The next prime is 143640041. The reversal of 143640006 is 600046341.

143640006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7785 + ... + 18651.

It is an arithmetic number, because the mean of its divisors is an integer number (17964804).

Almost surely, 2^143640006 is an apocalyptic number.

143640006 is an abundant number, since it is smaller than the sum of its proper divisors (143796858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143640006 is a wasteful number, since it uses less digits than its factorization.

143640006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13075.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 143640006 is about 11984.9908635760. The cubic root of 143640006 is about 523.7111314032.

Adding to 143640006 its reverse (600046341), we get a palindrome (743686347).

The spelling of 143640006 in words is "one hundred forty-three million, six hundred forty thousand, six".