140212313 has 4 divisors (see below), whose sum is σ = 141282768. Its totient is φ = 139141860.

The previous prime is 140212283. The next prime is 140212337. The reversal of 140212313 is 313212041.

140212313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140212313 - 2⁶ = 140212249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140212291 and 140212300.

It is not an unprimeable number, because it can be changed into a prime (140212363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535031 + ... + 535292.

It is an arithmetic number, because the mean of its divisors is an integer number (35320692).

Almost surely, 2^140212313 is an apocalyptic number.

It is an amenable number.

140212313 is a deficient number, since it is larger than the sum of its proper divisors (1070455).

140212313 is a wasteful number, since it uses less digits than its factorization.

140212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070454.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 140212313 is about 11841.1280290351. The cubic root of 140212313 is about 519.5117618949.

Adding to 140212313 its reverse (313212041), we get a palindrome (453424354).

The spelling of 140212313 in words is "one hundred forty million, two hundred twelve thousand, three hundred thirteen".