159925085 has 8 divisors (see below), whose sum is σ = 192164280. Its totient is φ = 127770624.

The previous prime is 159925081. The next prime is 159925093. The reversal of 159925085 is 580529951.

It can be written as a sum of positive squares in 4 ways, for example, as 1643524 + 158281561 = 1282^2 + 12581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159925085 - 2² = 159925081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159925081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16952 + ... + 24641.

It is an arithmetic number, because the mean of its divisors is an integer number (24020535).

Almost surely, 2^159925085 is an apocalyptic number.

It is an amenable number.

159925085 is a deficient number, since it is larger than the sum of its proper divisors (32239195).

159925085 is an equidigital number, since it uses as much as digits as its factorization.

159925085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42367.

The product of its (nonzero) digits is 162000, while the sum is 44.

The square root of 159925085 is about 12646.1490185748. The cubic root of 159925085 is about 542.7987806767.

The spelling of 159925085 in words is "one hundred fifty-nine million, nine hundred twenty-five thousand, eighty-five".