140106266449 has 2 divisors, whose sum is σ = 140106266450. Its totient is φ = 140106266448.

The previous prime is 140106266441. The next prime is 140106266491. The reversal of 140106266449 is 944662601041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93522814225 + 46583452224 = 305815^2 + 215832^2 .

It is a cyclic number.

It is not a de Polignac number, because 140106266449 - 2³ = 140106266441 is a prime.

It is not a weakly prime, because it can be changed into another prime (140106266441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70053133224 + 70053133225.

It is an arithmetic number, because the mean of its divisors is an integer number (70053133225).

Almost surely, 2^140106266449 is an apocalyptic number.

It is an amenable number.

140106266449 is a deficient number, since it is larger than the sum of its proper divisors (1).

140106266449 is an equidigital number, since it uses as much as digits as its factorization.

140106266449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 140106266449 in words is "one hundred forty billion, one hundred six million, two hundred sixty-six thousand, four hundred forty-nine".