12428161 has 8 divisors (see below), whose sum is σ = 12767040. Its totient is φ = 12091632.

The previous prime is 12428137. The next prime is 12428191. The reversal of 12428161 is 16182421.

12428161 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 12428161 - 2¹³ = 12419969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12428191) 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, 16356 + ... + 17098.

It is an arithmetic number, because the mean of its divisors is an integer number (1595880).

Almost surely, 2^12428161 is an apocalyptic number.

It is an amenable number.

12428161 is a deficient number, since it is larger than the sum of its proper divisors (338879).

12428161 is an equidigital number, since it uses as much as digits as its factorization.

12428161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175.

The product of its digits is 768, while the sum is 25.

The square root of 12428161 is about 3525.3596979599. The cubic root of 12428161 is about 231.6339911014.

The spelling of 12428161 in words is "twelve million, four hundred twenty-eight thousand, one hundred sixty-one".