159440441 has 2 divisors, whose sum is σ = 159440442. Its totient is φ = 159440440.

The previous prime is 159440423. The next prime is 159440443. The reversal of 159440441 is 144044951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92544400 + 66896041 = 9620^2 + 8179^2 .

It is a cyclic number.

It is not a de Polignac number, because 159440441 - 2¹⁸ = 159178297 is a prime.

Together with 159440443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 159440398 and 159440407.

It is not a weakly prime, because it can be changed into another prime (159440443) 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, 79720220 + 79720221.

It is an arithmetic number, because the mean of its divisors is an integer number (79720221).

Almost surely, 2^159440441 is an apocalyptic number.

It is an amenable number.

159440441 is a deficient number, since it is larger than the sum of its proper divisors (1).

159440441 is an equidigital number, since it uses as much as digits as its factorization.

159440441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 159440441 is about 12626.9727567616. The cubic root of 159440441 is about 542.2499187845.

The spelling of 159440441 in words is "one hundred fifty-nine million, four hundred forty thousand, four hundred forty-one".