140140073 has 2 divisors, whose sum is σ = 140140074. Its totient is φ = 140140072.

The previous prime is 140140043. The next prime is 140140097. The reversal of 140140073 is 370041041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139877929 + 262144 = 11827^2 + 512^2 .

It is an emirp because it is prime and its reverse (370041041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140140073 - 2¹⁶ = 140074537 is a prime.

It is not a weakly prime, because it can be changed into another prime (140140043) 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, 70070036 + 70070037.

It is an arithmetic number, because the mean of its divisors is an integer number (70070037).

Almost surely, 2^140140073 is an apocalyptic number.

It is an amenable number.

140140073 is a deficient number, since it is larger than the sum of its proper divisors (1).

140140073 is an equidigital number, since it uses as much as digits as its factorization.

140140073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 140140073 is about 11838.0772509728. The cubic root of 140140073 is about 519.4225258499.

The spelling of 140140073 in words is "one hundred forty million, one hundred forty thousand, seventy-three".