140502813 has 16 divisors (see below), whose sum is σ = 204567552. Its totient is φ = 85070000.

The previous prime is 140502811. The next prime is 140502827. The reversal of 140502813 is 318205041.

It is a cyclic number.

It is not a de Polignac number, because 140502813 - 2¹ = 140502811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140502811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58588 + ... + 60938.

It is an arithmetic number, because the mean of its divisors is an integer number (12785472).

Almost surely, 2^140502813 is an apocalyptic number.

It is an amenable number.

140502813 is a deficient number, since it is larger than the sum of its proper divisors (64064739).

140502813 is a wasteful number, since it uses less digits than its factorization.

140502813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 140502813 is about 11853.3882497790. The cubic root of 140502813 is about 519.8702992596.

Adding to 140502813 its reverse (318205041), we get a palindrome (458707854).

It can be divided in two parts, 1405028 and 13, that added together give a palindrome (1405041).

The spelling of 140502813 in words is "one hundred forty million, five hundred two thousand, eight hundred thirteen".