12028147 has 2 divisors, whose sum is σ = 12028148. Its totient is φ = 12028146.

The previous prime is 12028139. The next prime is 12028187. The reversal of 12028147 is 74182021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12028147 - 2³ = 12028139 is a prime.

It is not a weakly prime, because it can be changed into another prime (12028117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6014073 + 6014074.

It is an arithmetic number, because the mean of its divisors is an integer number (6014074).

Almost surely, 2^12028147 is an apocalyptic number.

12028147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12028147 is an equidigital number, since it uses as much as digits as its factorization.

12028147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 12028147 is about 3468.1619051019. The cubic root of 12028147 is about 229.1217102484.

The spelling of 12028147 in words is "twelve million, twenty-eight thousand, one hundred forty-seven".