140212312 has 16 divisors (see below), whose sum is σ = 263125800. Its totient is φ = 70045440.

The previous prime is 140212283. The next prime is 140212337. The reversal of 140212312 is 213212041.

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 3 ways as a sum of consecutive naturals, for example, 3112 + ... + 17032.

Almost surely, 2^140212312 is an apocalyptic number.

It is an amenable number.

140212312 is a deficient number, since it is larger than the sum of its proper divisors (122913488).

140212312 is a wasteful number, since it uses less digits than its factorization.

140212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15186 (or 15182 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140212312 is about 11841.1279868094. The cubic root of 140212312 is about 519.5117606598.

Adding to 140212312 its reverse (213212041), we get a palindrome (353424353).

The spelling of 140212312 in words is "one hundred forty million, two hundred twelve thousand, three hundred twelve".