7118261 has 2 divisors, whose sum is σ = 7118262. Its totient is φ = 7118260.

The previous prime is 7118239. The next prime is 7118317. The reversal of 7118261 is 1628117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5244100 + 1874161 = 2290^2 + 1369^2 .

It is an emirp because it is prime and its reverse (1628117) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7118261 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7118261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7118231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3559130 + 3559131.

It is an arithmetic number, because the mean of its divisors is an integer number (3559131).

Almost surely, 2^7118261 is an apocalyptic number.

It is an amenable number.

7118261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7118261 is an equidigital number, since it uses as much as digits as its factorization.

7118261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 26.

The square root of 7118261 is about 2668.0069340240. The cubic root of 7118261 is about 192.3643706455.

The spelling of 7118261 in words is "seven million, one hundred eighteen thousand, two hundred sixty-one".