140020312 has 16 divisors (see below), whose sum is σ = 263205360. Its totient is φ = 69832224.

The previous prime is 140020271. The next prime is 140020327. The reversal of 140020312 is 213020041.

140020312 is digitally balanced in base 3, 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 = 140020292 and 140020301.

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, 18868 + ... + 25219.

It is an arithmetic number, because the mean of its divisors is an integer number (16450335).

Almost surely, 2^140020312 is an apocalyptic number.

It is an amenable number.

140020312 is a deficient number, since it is larger than the sum of its proper divisors (123185048).

140020312 is a wasteful number, since it uses less digits than its factorization.

140020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44490 (or 44486 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 140020312 is about 11833.0178737294. The cubic root of 140020312 is about 519.2745208613.

Adding to 140020312 its reverse (213020041), we get a palindrome (353040353).

It can be divided in two parts, 1400 and 20312, that added together give a palindrome (21712).

The spelling of 140020312 in words is "one hundred forty million, twenty thousand, three hundred twelve".