7243147 has 2 divisors, whose sum is σ = 7243148. Its totient is φ = 7243146.

The previous prime is 7243129. The next prime is 7243153. The reversal of 7243147 is 7413427.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7243147 is a prime.

It is not a weakly prime, because it can be changed into another prime (7043147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621573 + 3621574.

It is an arithmetic number, because the mean of its divisors is an integer number (3621574).

Almost surely, 2^7243147 is an apocalyptic number.

7243147 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243147 is an equidigital number, since it uses as much as digits as its factorization.

7243147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 28.

The square root of 7243147 is about 2691.3095325510. The cubic root of 7243147 is about 193.4828309275.

The spelling of 7243147 in words is "seven million, two hundred forty-three thousand, one hundred forty-seven".