159553085 has 4 divisors (see below), whose sum is σ = 191463708. Its totient is φ = 127642464.

The previous prime is 159553073. The next prime is 159553087. The reversal of 159553085 is 580355951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19035769 + 140517316 = 4363^2 + 11854^2 .

It is a cyclic number.

It is not a de Polignac number, because 159553085 - 2¹⁴ = 159536701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159553087) 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 in 3 ways as a sum of consecutive naturals, for example, 15955304 + ... + 15955313.

It is an arithmetic number, because the mean of its divisors is an integer number (47865927).

Almost surely, 2^159553085 is an apocalyptic number.

It is an amenable number.

159553085 is a deficient number, since it is larger than the sum of its proper divisors (31910623).

159553085 is an equidigital number, since it uses as much as digits as its factorization.

159553085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31910622.

The product of its (nonzero) digits is 135000, while the sum is 41.

The square root of 159553085 is about 12631.4324207510. The cubic root of 159553085 is about 542.3775878179.

The spelling of 159553085 in words is "one hundred fifty-nine million, five hundred fifty-three thousand, eighty-five".