140579492177 has 2 divisors, whose sum is σ = 140579492178. Its totient is φ = 140579492176.

The previous prime is 140579492173. The next prime is 140579492203. The reversal of 140579492177 is 771294975041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110771814976 + 29807677201 = 332824^2 + 172649^2 .

It is an emirp because it is prime and its reverse (771294975041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140579492177 - 2² = 140579492173 is a prime.

It is not a weakly prime, because it can be changed into another prime (140579492173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70289746088 + 70289746089.

It is an arithmetic number, because the mean of its divisors is an integer number (70289746089).

Almost surely, 2^140579492177 is an apocalyptic number.

It is an amenable number.

140579492177 is a deficient number, since it is larger than the sum of its proper divisors (1).

140579492177 is an equidigital number, since it uses as much as digits as its factorization.

140579492177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The spelling of 140579492177 in words is "one hundred forty billion, five hundred seventy-nine million, four hundred ninety-two thousand, one hundred seventy-seven".