140794573 has 2 divisors, whose sum is σ = 140794574. Its totient is φ = 140794572.

The previous prime is 140794571. The next prime is 140794597. The reversal of 140794573 is 375497041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91049764 + 49744809 = 9542^2 + 7053^2 .

It is an emirp because it is prime and its reverse (375497041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140794573 - 2¹ = 140794571 is a prime.

It is a super-2 number, since 2×140794573² = 39646223572504658, which contains 22 as substring.

Together with 140794571, it forms a pair of twin primes.

It is equal to p_7954465 and since 140794573 and 7954465 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140794571) 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, 70397286 + 70397287.

It is an arithmetic number, because the mean of its divisors is an integer number (70397287).

Almost surely, 2^140794573 is an apocalyptic number.

It is an amenable number.

140794573 is a deficient number, since it is larger than the sum of its proper divisors (1).

140794573 is an equidigital number, since it uses as much as digits as its factorization.

140794573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 140794573 is about 11865.6888969836. The cubic root of 140794573 is about 520.2298946492.

The spelling of 140794573 in words is "one hundred forty million, seven hundred ninety-four thousand, five hundred seventy-three".