12578159 has 4 divisors (see below), whose sum is σ = 13721640. Its totient is φ = 11434680.

The previous prime is 12578131. The next prime is 12578161. The reversal of 12578159 is 95187521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12578159 - 2¹² = 12574063 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 (12578129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571724 + ... + 571745.

It is an arithmetic number, because the mean of its divisors is an integer number (3430410).

Almost surely, 2^12578159 is an apocalyptic number.

12578159 is a deficient number, since it is larger than the sum of its proper divisors (1143481).

12578159 is a wasteful number, since it uses less digits than its factorization.

12578159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143480.

The product of its digits is 25200, while the sum is 38.

The square root of 12578159 is about 3546.5700331447. The cubic root of 12578159 is about 232.5621462576.

The spelling of 12578159 in words is "twelve million, five hundred seventy-eight thousand, one hundred fifty-nine".