1164821117 has 2 divisors, whose sum is σ = 1164821118. Its totient is φ = 1164821116.

The previous prime is 1164821057. The next prime is 1164821137. The reversal of 1164821117 is 7111284611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 863243161 + 301577956 = 29381^2 + 17366^2 .

It is an emirp because it is prime and its reverse (7111284611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1164821117 - 2⁸ = 1164820861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164821137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582410558 + 582410559.

It is an arithmetic number, because the mean of its divisors is an integer number (582410559).

Almost surely, 2^1164821117 is an apocalyptic number.

It is an amenable number.

1164821117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164821117 is an equidigital number, since it uses as much as digits as its factorization.

1164821117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 32.

The square root of 1164821117 is about 34129.4757797421. The cubic root of 1164821117 is about 1052.1712040106.

The spelling of 1164821117 in words is "one billion, one hundred sixty-four million, eight hundred twenty-one thousand, one hundred seventeen".