140143808 has 56 divisors (see below), whose sum is σ = 328111104. Its totient is φ = 58118400.

The previous prime is 140143799. The next prime is 140143813. The reversal of 140143808 is 808341041.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843 + ... + 18933.

Almost surely, 2^140143808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140143808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164055552).

140143808 is an abundant number, since it is smaller than the sum of its proper divisors (187967296).

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

140143808 is a wasteful number, since it uses less digits than its factorization.

140143808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141 (or 10131 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 140143808 is about 11838.2350035806. The cubic root of 140143808 is about 519.4271403422.

Adding to 140143808 its reverse (808341041), we get a palindrome (948484849).

The spelling of 140143808 in words is "one hundred forty million, one hundred forty-three thousand, eight hundred eight".