4243147 has 2 divisors, whose sum is σ = 4243148. Its totient is φ = 4243146.

The previous prime is 4243139. The next prime is 4243181. The reversal of 4243147 is 7413424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4243147 - 2³ = 4243139 is a prime.

It is a d-powerful number, because it can be written as 4³ + 2¹³ + 4⁶ + 3⁹ + 1 + 4¹¹ + 7⁵ .

It is equal to p₂₉₉₁₄₀ and since 4243147 and 299140 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4243117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121573 + 2121574.

It is an arithmetic number, because the mean of its divisors is an integer number (2121574).

Almost surely, 2^4243147 is an apocalyptic number.

4243147 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243147 is an equidigital number, since it uses as much as digits as its factorization.

4243147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 25.

The square root of 4243147 is about 2059.8900456092. The cubic root of 4243147 is about 161.8934802473.

The spelling of 4243147 in words is "four million, two hundred forty-three thousand, one hundred forty-seven".