4012147 has 2 divisors, whose sum is σ = 4012148. Its totient is φ = 4012146.

The previous prime is 4012133. The next prime is 4012157. The reversal of 4012147 is 7412104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4012147 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4012157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006073 + 2006074.

It is an arithmetic number, because the mean of its divisors is an integer number (2006074).

Almost surely, 2^4012147 is an apocalyptic number.

4012147 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012147 is an equidigital number, since it uses as much as digits as its factorization.

4012147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 4012147 is about 2003.0344480313. The cubic root of 4012147 is about 158.9006274891.

The spelling of 4012147 in words is "four million, twelve thousand, one hundred forty-seven".