7042081 has 2 divisors, whose sum is σ = 7042082. Its totient is φ = 7042080.

The previous prime is 7042073. The next prime is 7042093. The reversal of 7042081 is 1802407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3744225 + 3297856 = 1935^2 + 1816^2 .

It is an emirp because it is prime and its reverse (1802407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7042081 - 2³ = 7042073 is a prime.

It is a super-2 number, since 2×7042081² = 99181809621122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7042001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521040 + 3521041.

It is an arithmetic number, because the mean of its divisors is an integer number (3521041).

Almost surely, 2^7042081 is an apocalyptic number.

It is an amenable number.

7042081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042081 is an equidigital number, since it uses as much as digits as its factorization.

7042081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7042081 is about 2653.6919565014. The cubic root of 7042081 is about 191.6756767871.

Adding to 7042081 its reverse (1802407), we get a palindrome (8844488).

The spelling of 7042081 in words is "seven million, forty-two thousand, eighty-one".