1117165481 has 2 divisors, whose sum is σ = 1117165482. Its totient is φ = 1117165480.

The previous prime is 1117165451. The next prime is 1117165537. The reversal of 1117165481 is 1845617111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919059856 + 198105625 = 30316^2 + 14075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117165481 - 2¹⁰ = 1117164457 is a prime.

It is a super-3 number, since 3×1117165481³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1117165411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558582740 + 558582741.

It is an arithmetic number, because the mean of its divisors is an integer number (558582741).

Almost surely, 2^1117165481 is an apocalyptic number.

It is an amenable number.

1117165481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117165481 is an equidigital number, since it uses as much as digits as its factorization.

1117165481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 35.

The square root of 1117165481 is about 33424.0255056150. The cubic root of 1117165481 is about 1037.6219955446.

The spelling of 1117165481 in words is "one billion, one hundred seventeen million, one hundred sixty-five thousand, four hundred eighty-one".