159172147 has 8 divisors (see below), whose sum is σ = 162132480. Its totient is φ = 156220680.

The previous prime is 159172141. The next prime is 159172159. The reversal of 159172147 is 741271951.

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 159172147 - 2⁷ = 159172019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159172141) 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, 42022 + ... + 45652.

It is an arithmetic number, because the mean of its divisors is an integer number (20266560).

Almost surely, 2^159172147 is an apocalyptic number.

159172147 is a deficient number, since it is larger than the sum of its proper divisors (2960333).

159172147 is an equidigital number, since it uses as much as digits as its factorization.

159172147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433.

The product of its digits is 17640, while the sum is 37.

The square root of 159172147 is about 12616.3444388618. The cubic root of 159172147 is about 541.9455959972.

The spelling of 159172147 in words is "one hundred fifty-nine million, one hundred seventy-two thousand, one hundred forty-seven".