159740369 has 2 divisors, whose sum is σ = 159740370. Its totient is φ = 159740368.

The previous prime is 159740363. The next prime is 159740393. The reversal of 159740369 is 963047951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140730769 + 19009600 = 11863^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 159740369 - 2¹⁶ = 159674833 is a prime.

It is a super-2 number, since 2×159740369² = 51033970976512322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (159740363) 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, 79870184 + 79870185.

It is an arithmetic number, because the mean of its divisors is an integer number (79870185).

Almost surely, 2^159740369 is an apocalyptic number.

It is an amenable number.

159740369 is a deficient number, since it is larger than the sum of its proper divisors (1).

159740369 is an equidigital number, since it uses as much as digits as its factorization.

159740369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 159740369 is about 12638.8436575503. The cubic root of 159740369 is about 542.5897197771.

The spelling of 159740369 in words is "one hundred fifty-nine million, seven hundred forty thousand, three hundred sixty-nine".