140140212 has 24 divisors (see below), whose sum is σ = 337542912. Its totient is φ = 45206400.

The previous prime is 140140211. The next prime is 140140237. The reversal of 140140212 is 212041041.

140140212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140140191 and 140140200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140140211) 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, 187989 + ... + 188732.

It is an arithmetic number, because the mean of its divisors is an integer number (14064288).

Almost surely, 2^140140212 is an apocalyptic number.

140140212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140140212 is an abundant number, since it is smaller than the sum of its proper divisors (197402700).

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

140140212 is a wasteful number, since it uses less digits than its factorization.

140140212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376759 (or 376757 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140140212 is about 11838.0831218572. The cubic root of 140140212 is about 519.4226975821.

Adding to 140140212 its reverse (212041041), we get a palindrome (352181253).

The spelling of 140140212 in words is "one hundred forty million, one hundred forty thousand, two hundred twelve".