7090121 has 2 divisors, whose sum is σ = 7090122. Its totient is φ = 7090120.

The previous prime is 7090117. The next prime is 7090129. The reversal of 7090121 is 1210907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4644025 + 2446096 = 2155^2 + 1564^2 .

It is a cyclic number.

It is not a de Polignac number, because 7090121 - 2² = 7090117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7090093 and 7090102.

It is not a weakly prime, because it can be changed into another prime (7090129) 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, 3545060 + 3545061.

It is an arithmetic number, because the mean of its divisors is an integer number (3545061).

Almost surely, 2^7090121 is an apocalyptic number.

It is an amenable number.

7090121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7090121 is an equidigital number, since it uses as much as digits as its factorization.

7090121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 7090121 is about 2662.7281122939. The cubic root of 7090121 is about 192.1105501226.

The spelling of 7090121 in words is "seven million, ninety thousand, one hundred twenty-one".