140205673 has 2 divisors, whose sum is σ = 140205674. Its totient is φ = 140205672.

The previous prime is 140205641. The next prime is 140205701. The reversal of 140205673 is 376502041.

It is an a-pointer prime, because the next prime (140205701) can be obtained adding 140205673 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132066064 + 8139609 = 11492^2 + 2853^2 .

It is a cyclic number.

It is not a de Polignac number, because 140205673 - 2⁵ = 140205641 is a prime.

It is not a weakly prime, because it can be changed into another prime (140203673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70102836 + 70102837.

It is an arithmetic number, because the mean of its divisors is an integer number (70102837).

Almost surely, 2^140205673 is an apocalyptic number.

It is an amenable number.

140205673 is a deficient number, since it is larger than the sum of its proper divisors (1).

140205673 is an equidigital number, since it uses as much as digits as its factorization.

140205673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 140205673 is about 11840.8476470226. The cubic root of 140205673 is about 519.5035609685.

The spelling of 140205673 in words is "one hundred forty million, two hundred five thousand, six hundred seventy-three".