140820199171 has 2 divisors, whose sum is σ = 140820199172. Its totient is φ = 140820199170.

The previous prime is 140820199147. The next prime is 140820199217. The reversal of 140820199171 is 171991028041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140820199171 - 2¹⁷ = 140820068099 is a prime.

It is not a weakly prime, because it can be changed into another prime (140820199141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70410099585 + 70410099586.

It is an arithmetic number, because the mean of its divisors is an integer number (70410099586).

Almost surely, 2^140820199171 is an apocalyptic number.

140820199171 is a deficient number, since it is larger than the sum of its proper divisors (1).

140820199171 is an equidigital number, since it uses as much as digits as its factorization.

140820199171 is an evil number, because the sum of its binary digits is even.

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

The spelling of 140820199171 in words is "one hundred forty billion, eight hundred twenty million, one hundred ninety-nine thousand, one hundred seventy-one".