7043161 has 2 divisors, whose sum is σ = 7043162. Its totient is φ = 7043160.

The previous prime is 7043159. The next prime is 7043171. The reversal of 7043161 is 1613407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6734025 + 309136 = 2595^2 + 556^2 .

It is an emirp because it is prime and its reverse (1613407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7043161 - 2¹ = 7043159 is a prime.

It is a super-2 number, since 2×7043161² = 99212233743842, which contains 22 as substring.

Together with 7043159, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7043171) 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, 3521580 + 3521581.

It is an arithmetic number, because the mean of its divisors is an integer number (3521581).

Almost surely, 2^7043161 is an apocalyptic number.

It is an amenable number.

7043161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7043161 is an equidigital number, since it uses as much as digits as its factorization.

7043161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7043161 is about 2653.8954387843. The cubic root of 7043161 is about 191.6854749869.

Adding to 7043161 its reverse (1613407), we get a palindrome (8656568).

The spelling of 7043161 in words is "seven million, forty-three thousand, one hundred sixty-one".