140140814 has 8 divisors (see below), whose sum is σ = 229321368. Its totient is φ = 63700360.

The previous prime is 140140813. The next prime is 140140823. The reversal of 140140814 is 418041041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140140814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140140813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3184997 + ... + 3185040.

It is an arithmetic number, because the mean of its divisors is an integer number (28665171).

Almost surely, 2^140140814 is an apocalyptic number.

140140814 is a deficient number, since it is larger than the sum of its proper divisors (89180554).

140140814 is a wasteful number, since it uses less digits than its factorization.

140140814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370050.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 140140814 is about 11838.1085482437. The cubic root of 140140814 is about 519.4234413420.

Adding to 140140814 its reverse (418041041), we get a palindrome (558181855).

The spelling of 140140814 in words is "one hundred forty million, one hundred forty thousand, eight hundred fourteen".