159512091 has 16 divisors (see below), whose sum is σ = 215510400. Its totient is φ = 104937408.

The previous prime is 159512077. The next prime is 159512113. The reversal of 159512091 is 190215951.

It is a happy number.

159512091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159512091 - 2⁹ = 159511579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159512051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73575 + ... + 75711.

It is an arithmetic number, because the mean of its divisors is an integer number (13469400).

Almost surely, 2^159512091 is an apocalyptic number.

159512091 is a deficient number, since it is larger than the sum of its proper divisors (55998309).

159512091 is a wasteful number, since it uses less digits than its factorization.

159512091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458.

The product of its (nonzero) digits is 4050, while the sum is 33.

The square root of 159512091 is about 12629.8096185176. The cubic root of 159512091 is about 542.3311327852.

The spelling of 159512091 in words is "one hundred fifty-nine million, five hundred twelve thousand, ninety-one".