140343312 has 40 divisors (see below), whose sum is σ = 363925120. Its totient is φ = 46604160.

The previous prime is 140343239. The next prime is 140343323. The reversal of 140343312 is 213343041.

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, 7614 + ... + 18402.

It is an arithmetic number, because the mean of its divisors is an integer number (9098128).

Almost surely, 2^140343312 is an apocalyptic number.

140343312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140343312 is an abundant number, since it is smaller than the sum of its proper divisors (223581808).

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

140343312 is a wasteful number, since it uses less digits than its factorization.

140343312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11071 (or 11065 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 140343312 is about 11846.6582629871. The cubic root of 140343312 is about 519.6735031293.

Adding to 140343312 its reverse (213343041), we get a palindrome (353686353).

The spelling of 140343312 in words is "one hundred forty million, three hundred forty-three thousand, three hundred twelve".