140520143573 has 2 divisors, whose sum is σ = 140520143574. Its totient is φ = 140520143572.

The previous prime is 140520143503. The next prime is 140520143587. The reversal of 140520143573 is 375341025041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132570994609 + 7949148964 = 364103^2 + 89158^2 .

It is an emirp because it is prime and its reverse (375341025041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140520143573 - 2¹⁸ = 140519881429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140520143503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70260071786 + 70260071787.

It is an arithmetic number, because the mean of its divisors is an integer number (70260071787).

Almost surely, 2^140520143573 is an apocalyptic number.

It is an amenable number.

140520143573 is a deficient number, since it is larger than the sum of its proper divisors (1).

140520143573 is an equidigital number, since it uses as much as digits as its factorization.

140520143573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 140520143573 in words is "one hundred forty billion, five hundred twenty million, one hundred forty-three thousand, five hundred seventy-three".