159655091 has 4 divisors (see below), whose sum is σ = 159681000. Its totient is φ = 159629184.

The previous prime is 159655057. The next prime is 159655103. The reversal of 159655091 is 190556951.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 159655091 - 2²² = 155460787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159655031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2195 + ... + 18003.

It is an arithmetic number, because the mean of its divisors is an integer number (39920250).

Almost surely, 2^159655091 is an apocalyptic number.

159655091 is a deficient number, since it is larger than the sum of its proper divisors (25909).

159655091 is a wasteful number, since it uses less digits than its factorization.

159655091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25908.

The product of its (nonzero) digits is 60750, while the sum is 41.

The square root of 159655091 is about 12635.4695599333. The cubic root of 159655091 is about 542.4931480655.

The spelling of 159655091 in words is "one hundred fifty-nine million, six hundred fifty-five thousand, ninety-one".