12478159 has 4 divisors (see below), whose sum is σ = 12506400. Its totient is φ = 12449920.

The previous prime is 12478157. The next prime is 12478163. The reversal of 12478159 is 95187421.

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 12478159 - 2¹ = 12478157 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 (12478157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13447 + ... + 14344.

It is an arithmetic number, because the mean of its divisors is an integer number (3126600).

Almost surely, 2^12478159 is an apocalyptic number.

12478159 is a deficient number, since it is larger than the sum of its proper divisors (28241).

12478159 is an equidigital number, since it uses as much as digits as its factorization.

12478159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28240.

The product of its digits is 20160, while the sum is 37.

The square root of 12478159 is about 3532.4437716686. The cubic root of 12478159 is about 231.9441936223.

The spelling of 12478159 in words is "twelve million, four hundred seventy-eight thousand, one hundred fifty-nine".