140445220023169 has 2 divisors, whose sum is σ = 140445220023170. Its totient is φ = 140445220023168.

The previous prime is 140445220023109. The next prime is 140445220023271. The reversal of 140445220023169 is 961320022544041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78579129773169 + 61866090250000 = 8864487^2 + 7865500^2 .

It is a cyclic number.

It is not a de Polignac number, because 140445220023169 - 2³⁷ = 140307781069697 is a prime.

It is a super-2 number, since 2×140445220023169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140445220023109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222610011584 + 70222610011585.

It is an arithmetic number, because the mean of its divisors is an integer number (70222610011585).

Almost surely, 2^{140445220023169} is an apocalyptic number.

It is an amenable number.

140445220023169 is a deficient number, since it is larger than the sum of its proper divisors (1).

140445220023169 is an equidigital number, since it uses as much as digits as its factorization.

140445220023169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 140445220023169 in words is "one hundred forty trillion, four hundred forty-five billion, two hundred twenty million, twenty-three thousand, one hundred sixty-nine".