159621853 has 2 divisors, whose sum is σ = 159621854. Its totient is φ = 159621852.

The previous prime is 159621841. The next prime is 159621877. The reversal of 159621853 is 358126951.

159621853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150872089 + 8749764 = 12283^2 + 2958^2 .

It is a cyclic number.

It is not a de Polignac number, because 159621853 - 2¹⁷ = 159490781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159621953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79810926 + 79810927.

It is an arithmetic number, because the mean of its divisors is an integer number (79810927).

Almost surely, 2^159621853 is an apocalyptic number.

It is an amenable number.

159621853 is a deficient number, since it is larger than the sum of its proper divisors (1).

159621853 is an equidigital number, since it uses as much as digits as its factorization.

159621853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 159621853 is about 12634.1542257486. The cubic root of 159621853 is about 542.4554989087.

The spelling of 159621853 in words is "one hundred fifty-nine million, six hundred twenty-one thousand, eight hundred fifty-three".