140878142117 has 2 divisors, whose sum is σ = 140878142118. Its totient is φ = 140878142116.

The previous prime is 140878142087. The next prime is 140878142149. The reversal of 140878142117 is 711241878041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74947822756 + 65930319361 = 273766^2 + 256769^2 .

It is a cyclic number.

It is not a de Polignac number, because 140878142117 - 2¹⁰ = 140878141093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140878042117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70439071058 + 70439071059.

It is an arithmetic number, because the mean of its divisors is an integer number (70439071059).

Almost surely, 2^140878142117 is an apocalyptic number.

It is an amenable number.

140878142117 is a deficient number, since it is larger than the sum of its proper divisors (1).

140878142117 is an equidigital number, since it uses as much as digits as its factorization.

140878142117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100352, while the sum is 44.

The spelling of 140878142117 in words is "one hundred forty billion, eight hundred seventy-eight million, one hundred forty-two thousand, one hundred seventeen".