140205012 has 12 divisors (see below), whose sum is σ = 327145056. Its totient is φ = 46735000.

The previous prime is 140205007. The next prime is 140205029. The reversal of 140205012 is 210502041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 140204982 and 140205000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5841864 + ... + 5841887.

It is an arithmetic number, because the mean of its divisors is an integer number (27262088).

Almost surely, 2^140205012 is an apocalyptic number.

140205012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140205012 is an abundant number, since it is smaller than the sum of its proper divisors (186940044).

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

140205012 is a wasteful number, since it uses less digits than its factorization.

140205012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11683758 (or 11683756 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 140205012 is about 11840.8197351366. The cubic root of 140205012 is about 519.5027445670.

Adding to 140205012 its reverse (210502041), we get a palindrome (350707053).

The spelling of 140205012 in words is "one hundred forty million, two hundred five thousand, twelve".