140143308 has 24 divisors (see below), whose sum is σ = 346236912. Its totient is φ = 43966464.

The previous prime is 140143307. The next prime is 140143319. The reversal of 140143308 is 803341041.

It is not an unprimeable number, because it can be changed into a prime (140143307) 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 7 ways as a sum of consecutive naturals, for example, 343285 + ... + 343692.

It is an arithmetic number, because the mean of its divisors is an integer number (14426538).

Almost surely, 2^140143308 is an apocalyptic number.

It is an amenable number.

140143308 is an abundant number, since it is smaller than the sum of its proper divisors (206093604).

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

140143308 is a wasteful number, since it uses less digits than its factorization.

140143308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687001 (or 686999 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140143308 is about 11838.2138855488. The cubic root of 140143308 is about 519.4265226104.

Adding to 140143308 its reverse (803341041), we get a palindrome (943484349).

The spelling of 140143308 in words is "one hundred forty million, one hundred forty-three thousand, three hundred eight".