140161559 has 2 divisors, whose sum is σ = 140161560. Its totient is φ = 140161558.

The previous prime is 140161543. The next prime is 140161573. The reversal of 140161559 is 955161041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140161559 - 2⁴ = 140161543 is a prime.

It is a Sophie Germain 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 (140161579) 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, 70080779 + 70080780.

It is an arithmetic number, because the mean of its divisors is an integer number (70080780).

Almost surely, 2^140161559 is an apocalyptic number.

140161559 is a deficient number, since it is larger than the sum of its proper divisors (1).

140161559 is an equidigital number, since it uses as much as digits as its factorization.

140161559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 140161559 is about 11838.9847115367. The cubic root of 140161559 is about 519.4490701062.

The spelling of 140161559 in words is "one hundred forty million, one hundred sixty-one thousand, five hundred fifty-nine".