159115925 has 6 divisors (see below), whose sum is σ = 197303778. Its totient is φ = 127292720.

The previous prime is 159115919. The next prime is 159115939. The reversal of 159115925 is 529511951.

It can be written as a sum of positive squares in 3 ways, for example, as 5579044 + 153536881 = 2362^2 + 12391^2 .

It is not a de Polignac number, because 159115925 - 2¹² = 159111829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3182294 + ... + 3182343.

It is an arithmetic number, because the mean of its divisors is an integer number (32883963).

Almost surely, 2^159115925 is an apocalyptic number.

It is an amenable number.

159115925 is a deficient number, since it is larger than the sum of its proper divisors (38187853).

159115925 is an equidigital number, since it uses as much as digits as its factorization.

159115925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364647 (or 6364642 counting only the distinct ones).

The product of its digits is 20250, while the sum is 38.

The square root of 159115925 is about 12614.1161006231. The cubic root of 159115925 is about 541.8817807004.

The spelling of 159115925 in words is "one hundred fifty-nine million, one hundred fifteen thousand, nine hundred twenty-five".