159622013 has 2 divisors, whose sum is σ = 159622014. Its totient is φ = 159622012.

The previous prime is 159621991. The next prime is 159622037. The reversal of 159622013 is 310226951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97574884 + 62047129 = 9878^2 + 7877^2 .

It is a cyclic number.

It is not a de Polignac number, because 159622013 - 2⁸ = 159621757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159622213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79811006 + 79811007.

It is an arithmetic number, because the mean of its divisors is an integer number (79811007).

Almost surely, 2^159622013 is an apocalyptic number.

It is an amenable number.

159622013 is a deficient number, since it is larger than the sum of its proper divisors (1).

159622013 is an equidigital number, since it uses as much as digits as its factorization.

159622013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 159622013 is about 12634.1605577893. The cubic root of 159622013 is about 542.4556801555.

Adding to 159622013 its reverse (310226951), we get a palindrome (469848964).

The spelling of 159622013 in words is "one hundred fifty-nine million, six hundred twenty-two thousand, thirteen".