140400212140 has 24 divisors (see below), whose sum is σ = 294850321920. Its totient is φ = 56158203648.

The previous prime is 140400212129. The next prime is 140400212149. The reversal of 140400212140 is 41212004041.

It is not an unprimeable number, because it can be changed into a prime (140400212149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 601749 + ... + 801811.

It is an arithmetic number, because the mean of its divisors is an integer number (12285430080).

Almost surely, 2^140400212140 is an apocalyptic number.

140400212140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140400212140 is an abundant number, since it is smaller than the sum of its proper divisors (154450109780).

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

140400212140 is a wasteful number, since it uses less digits than its factorization.

140400212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235161 (or 235159 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 140400212140 its reverse (41212004041), we get a palindrome (181612216181).

The spelling of 140400212140 in words is "one hundred forty billion, four hundred million, two hundred twelve thousand, one hundred forty".