7181120417 has 2 divisors, whose sum is σ = 7181120418. Its totient is φ = 7181120416.

The previous prime is 7181120413. The next prime is 7181120423. The reversal of 7181120417 is 7140211817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3943965601 + 3237154816 = 62801^2 + 56896^2 .

It is a cyclic number.

It is not a de Polignac number, because 7181120417 - 2² = 7181120413 is a prime.

It is not a weakly prime, because it can be changed into another prime (7181120413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3590560208 + 3590560209.

It is an arithmetic number, because the mean of its divisors is an integer number (3590560209).

Almost surely, 2^7181120417 is an apocalyptic number.

It is an amenable number.

7181120417 is a deficient number, since it is larger than the sum of its proper divisors (1).

7181120417 is an equidigital number, since it uses as much as digits as its factorization.

7181120417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 7181120417 is about 84741.4917086075. The cubic root of 7181120417 is about 1929.2895106441.

The spelling of 7181120417 in words is "seven billion, one hundred eighty-one million, one hundred twenty thousand, four hundred seventeen".