1161105727 has 2 divisors, whose sum is σ = 1161105728. Its totient is φ = 1161105726.

The previous prime is 1161105721. The next prime is 1161105731. The reversal of 1161105727 is 7275011611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161105727 - 2¹¹ = 1161103679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161105721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580552863 + 580552864.

It is an arithmetic number, because the mean of its divisors is an integer number (580552864).

Almost surely, 2^1161105727 is an apocalyptic number.

1161105727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161105727 is an equidigital number, since it uses as much as digits as its factorization.

1161105727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 31.

The square root of 1161105727 is about 34075.0014966984. The cubic root of 1161105727 is about 1051.0513210035.

The spelling of 1161105727 in words is "one billion, one hundred sixty-one million, one hundred five thousand, seven hundred twenty-seven".