140445073 has 2 divisors, whose sum is σ = 140445074. Its totient is φ = 140445072.

The previous prime is 140445001. The next prime is 140445077. The reversal of 140445073 is 370544041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77845329 + 62599744 = 8823^2 + 7912^2 .

It is a cyclic number.

It is not a de Polignac number, because 140445073 - 2¹⁷ = 140314001 is a prime.

It is not a weakly prime, because it can be changed into another prime (140445077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222536 + 70222537.

It is an arithmetic number, because the mean of its divisors is an integer number (70222537).

Almost surely, 2^140445073 is an apocalyptic number.

It is an amenable number.

140445073 is a deficient number, since it is larger than the sum of its proper divisors (1).

140445073 is an equidigital number, since it uses as much as digits as its factorization.

140445073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 140445073 is about 11850.9524089838. The cubic root of 140445073 is about 519.7990754806.

The spelling of 140445073 in words is "one hundred forty million, four hundred forty-five thousand, seventy-three".