140640316 has 6 divisors (see below), whose sum is σ = 246120560. Its totient is φ = 70320156.

The previous prime is 140640307. The next prime is 140640317. The reversal of 140640316 is 613046041.

140640316 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140640317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17580036 + ... + 17580043.

Almost surely, 2^140640316 is an apocalyptic number.

It is an amenable number.

140640316 is a deficient number, since it is larger than the sum of its proper divisors (105480244).

140640316 is a wasteful number, since it uses less digits than its factorization.

140640316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35160083 (or 35160081 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 140640316 is about 11859.1869873107. The cubic root of 140640316 is about 520.0398342266.

Adding to 140640316 its reverse (613046041), we get a palindrome (753686357).

The spelling of 140640316 in words is "one hundred forty million, six hundred forty thousand, three hundred sixteen".