140308312 has 32 divisors (see below), whose sum is σ = 283377600. Its totient is φ = 64913184.

The previous prime is 140308309. The next prime is 140308319. The reversal of 140308312 is 213803041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140308319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198 + ... + 17269.

It is an arithmetic number, because the mean of its divisors is an integer number (8855550).

Almost surely, 2^140308312 is an apocalyptic number.

It is an amenable number.

140308312 is an abundant number, since it is smaller than the sum of its proper divisors (143069288).

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

140308312 is a wasteful number, since it uses less digits than its factorization.

140308312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21535 (or 21531 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 140308312 is about 11845.1809610491. The cubic root of 140308312 is about 519.6302993491.

The spelling of 140308312 in words is "one hundred forty million, three hundred eight thousand, three hundred twelve".