140918102197 has 2 divisors, whose sum is σ = 140918102198. Its totient is φ = 140918102196.

The previous prime is 140918102189. The next prime is 140918102239. The reversal of 140918102197 is 791201819041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137463719121 + 3454383076 = 370761^2 + 58774^2 .

It is a cyclic number.

It is not a de Polignac number, because 140918102197 - 2³ = 140918102189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140918102107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70459051098 + 70459051099.

It is an arithmetic number, because the mean of its divisors is an integer number (70459051099).

Almost surely, 2^140918102197 is an apocalyptic number.

It is an amenable number.

140918102197 is a deficient number, since it is larger than the sum of its proper divisors (1).

140918102197 is an equidigital number, since it uses as much as digits as its factorization.

140918102197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 43.

The spelling of 140918102197 in words is "one hundred forty billion, nine hundred eighteen million, one hundred two thousand, one hundred ninety-seven".