159255591 has 16 divisors (see below), whose sum is σ = 232193280. Its totient is φ = 96289920.

The previous prime is 159255563. The next prime is 159255601. The reversal of 159255591 is 195552951.

159255591 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 159255591 - 2⁶ = 159255527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159257591) 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, 8991 + ... + 19983.

It is an arithmetic number, because the mean of its divisors is an integer number (14512080).

Almost surely, 2^159255591 is an apocalyptic number.

159255591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

159255591 is a deficient number, since it is larger than the sum of its proper divisors (72937689).

159255591 is a wasteful number, since it uses less digits than its factorization.

159255591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446.

The product of its digits is 101250, while the sum is 42.

The square root of 159255591 is about 12619.6509856652. The cubic root of 159255591 is about 542.0402821783.

The spelling of 159255591 in words is "one hundred fifty-nine million, two hundred fifty-five thousand, five hundred ninety-one".