140122123395805 has 16 divisors (see below), whose sum is σ = 168200271361584. Its totient is φ = 112061888064000.

The previous prime is 140122123395799. The next prime is 140122123395851. The reversal of 140122123395805 is 508593321221041.

It can be written as a sum of positive squares in 8 ways, for example, as 2531592845604 + 137590530550201 = 1591098^2 + 11729899^2 .

It is not a de Polignac number, because 140122123395805 - 2¹⁷ = 140122123264733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235607977 + ... + 236201953.

It is an arithmetic number, because the mean of its divisors is an integer number (10512516960099).

Almost surely, 2^{140122123395805} is an apocalyptic number.

It is an amenable number.

140122123395805 is a deficient number, since it is larger than the sum of its proper divisors (28078147965779).

140122123395805 is a wasteful number, since it uses less digits than its factorization.

140122123395805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608976.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 140122123395805 in words is "one hundred forty trillion, one hundred twenty-two billion, one hundred twenty-three million, three hundred ninety-five thousand, eight hundred five".