159420449437 has 2 divisors, whose sum is σ = 159420449438. Its totient is φ = 159420449436.

The previous prime is 159420449417. The next prime is 159420449443. The reversal of 159420449437 is 734944024951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131541134596 + 27879314841 = 362686^2 + 166971^2 .

It is a cyclic number.

It is not a de Polignac number, because 159420449437 - 2¹⁹ = 159419925149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159420449417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79710224718 + 79710224719.

It is an arithmetic number, because the mean of its divisors is an integer number (79710224719).

Almost surely, 2^159420449437 is an apocalyptic number.

It is an amenable number.

159420449437 is a deficient number, since it is larger than the sum of its proper divisors (1).

159420449437 is an equidigital number, since it uses as much as digits as its factorization.

159420449437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 159420449437 in words is "one hundred fifty-nine billion, four hundred twenty million, four hundred forty-nine thousand, four hundred thirty-seven".