140606813 has 8 divisors (see below), whose sum is σ = 149587200. Its totient is φ = 131705280.

The previous prime is 140606801. The next prime is 140606849. The reversal of 140606813 is 318606041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140606813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140606863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16013 + ... + 23186.

It is an arithmetic number, because the mean of its divisors is an integer number (18698400).

Almost surely, 2^140606813 is an apocalyptic number.

It is an amenable number.

140606813 is a deficient number, since it is larger than the sum of its proper divisors (8980387).

140606813 is a wasteful number, since it uses less digits than its factorization.

140606813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39427.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 140606813 is about 11857.7743695856. The cubic root of 140606813 is about 519.9985367316.

The spelling of 140606813 in words is "one hundred forty million, six hundred six thousand, eight hundred thirteen".