1147220117 has 2 divisors, whose sum is σ = 1147220118. Its totient is φ = 1147220116.

The previous prime is 1147220089. The next prime is 1147220141. The reversal of 1147220117 is 7110227411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115960836 + 31259281 = 33406^2 + 5591^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147220117 - 2⁸ = 1147219861 is a prime.

It is a super-2 number, since 2×1147220117² = 2632227993698987378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147220017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573610058 + 573610059.

It is an arithmetic number, because the mean of its divisors is an integer number (573610059).

Almost surely, 2^1147220117 is an apocalyptic number.

It is an amenable number.

1147220117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147220117 is an equidigital number, since it uses as much as digits as its factorization.

1147220117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 1147220117 is about 33870.6379774577. The cubic root of 1147220117 is about 1046.8446823649.

Adding to 1147220117 its reverse (7110227411), we get a palindrome (8257447528).

The spelling of 1147220117 in words is "one billion, one hundred forty-seven million, two hundred twenty thousand, one hundred seventeen".