140447273 has 2 divisors, whose sum is σ = 140447274. Its totient is φ = 140447272.

The previous prime is 140447243. The next prime is 140447299. The reversal of 140447273 is 372744041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102353689 + 38093584 = 10117^2 + 6172^2 .

It is a cyclic number.

It is not a de Polignac number, because 140447273 - 2¹⁰ = 140446249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140447213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70223636 + 70223637.

It is an arithmetic number, because the mean of its divisors is an integer number (70223637).

Almost surely, 2^140447273 is an apocalyptic number.

It is an amenable number.

140447273 is a deficient number, since it is larger than the sum of its proper divisors (1).

140447273 is an equidigital number, since it uses as much as digits as its factorization.

140447273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 140447273 is about 11851.0452281645. The cubic root of 140447273 is about 519.8017895950.

The spelling of 140447273 in words is "one hundred forty million, four hundred forty-seven thousand, two hundred seventy-three".