140520563 has 2 divisors, whose sum is σ = 140520564. Its totient is φ = 140520562.

The previous prime is 140520557. The next prime is 140520581. The reversal of 140520563 is 365025041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140520563 is a prime.

It is not a weakly prime, because it can be changed into another prime (140520533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70260281 + 70260282.

It is an arithmetic number, because the mean of its divisors is an integer number (70260282).

Almost surely, 2^140520563 is an apocalyptic number.

140520563 is a deficient number, since it is larger than the sum of its proper divisors (1).

140520563 is an equidigital number, since it uses as much as digits as its factorization.

140520563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 140520563 is about 11854.1369571977. The cubic root of 140520563 is about 519.8921904210.

The spelling of 140520563 in words is "one hundred forty million, five hundred twenty thousand, five hundred sixty-three".