140320312 has 48 divisors (see below), whose sum is σ = 306240480. Its totient is φ = 60023040.

The previous prime is 140320267. The next prime is 140320331. The reversal of 140320312 is 213023041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12193 + ... + 20719.

It is an arithmetic number, because the mean of its divisors is an integer number (6380010).

Almost surely, 2^140320312 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 140320312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153120240).

140320312 is an abundant number, since it is smaller than the sum of its proper divisors (165920168).

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

140320312 is a wasteful number, since it uses less digits than its factorization.

140320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8572 (or 8557 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140320312 is about 11845.6874853256. The cubic root of 140320312 is about 519.6451128830.

Adding to 140320312 its reverse (213023041), we get a palindrome (353343353).

The spelling of 140320312 in words is "one hundred forty million, three hundred twenty thousand, three hundred twelve".