12147159 has 8 divisors (see below), whose sum is σ = 16278400. Its totient is φ = 8057016.

The previous prime is 12147139. The next prime is 12147173. The reversal of 12147159 is 95174121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12147159 - 2⁸ = 12146903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147139) 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, 9577 + ... + 10770.

It is an arithmetic number, because the mean of its divisors is an integer number (2034800).

Almost surely, 2^12147159 is an apocalyptic number.

12147159 is a deficient number, since it is larger than the sum of its proper divisors (4131241).

12147159 is a wasteful number, since it uses less digits than its factorization.

12147159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20549.

The product of its digits is 2520, while the sum is 30.

The square root of 12147159 is about 3485.2774638470. The cubic root of 12147159 is about 229.8749099254.

The spelling of 12147159 in words is "twelve million, one hundred forty-seven thousand, one hundred fifty-nine".