140427559 has 2 divisors, whose sum is σ = 140427560. Its totient is φ = 140427558.

The previous prime is 140427533. The next prime is 140427577. The reversal of 140427559 is 955724041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140427559 - 2¹⁹ = 139903271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140427509) 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, 70213779 + 70213780.

It is an arithmetic number, because the mean of its divisors is an integer number (70213780).

Almost surely, 2^140427559 is an apocalyptic number.

140427559 is a deficient number, since it is larger than the sum of its proper divisors (1).

140427559 is an equidigital number, since it uses as much as digits as its factorization.

140427559 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 37.

The square root of 140427559 is about 11850.2134579931. The cubic root of 140427559 is about 519.7774676514. Note that the first 3 decimals are identical.

The spelling of 140427559 in words is "one hundred forty million, four hundred twenty-seven thousand, five hundred fifty-nine".