1161422069 has 2 divisors, whose sum is σ = 1161422070. Its totient is φ = 1161422068.

The previous prime is 1161422039. The next prime is 1161422077. The reversal of 1161422069 is 9602241611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1053781444 + 107640625 = 32462^2 + 10375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161422069 - 2⁸ = 1161421813 is a prime.

It is a super-2 number, since 2×1161422069² = 2697802444720481522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161422039) 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, 580711034 + 580711035.

It is an arithmetic number, because the mean of its divisors is an integer number (580711035).

Almost surely, 2^1161422069 is an apocalyptic number.

It is an amenable number.

1161422069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161422069 is an equidigital number, since it uses as much as digits as its factorization.

1161422069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1161422069 is about 34079.6430292337. The cubic root of 1161422069 is about 1051.1467649348.

The spelling of 1161422069 in words is "one billion, one hundred sixty-one million, four hundred twenty-two thousand, sixty-nine".