140420563 has 2 divisors, whose sum is σ = 140420564. Its totient is φ = 140420562.

The previous prime is 140420509. The next prime is 140420573. The reversal of 140420563 is 365024041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140420563 is a prime.

It is not a weakly prime, because it can be changed into another prime (140420503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210281 + 70210282.

It is an arithmetic number, because the mean of its divisors is an integer number (70210282).

Almost surely, 2^140420563 is an apocalyptic number.

140420563 is a deficient number, since it is larger than the sum of its proper divisors (1).

140420563 is an equidigital number, since it uses as much as digits as its factorization.

140420563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 140420563 is about 11849.9182697603. The cubic root of 140420563 is about 519.7688358615.

The spelling of 140420563 in words is "one hundred forty million, four hundred twenty thousand, five hundred sixty-three".