1109195827 has 2 divisors, whose sum is σ = 1109195828. Its totient is φ = 1109195826.

The previous prime is 1109195807. The next prime is 1109195831. The reversal of 1109195827 is 7285919011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1109195827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109195807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554597913 + 554597914.

It is an arithmetic number, because the mean of its divisors is an integer number (554597914).

Almost surely, 2^1109195827 is an apocalyptic number.

1109195827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109195827 is an equidigital number, since it uses as much as digits as its factorization.

1109195827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 43.

The square root of 1109195827 is about 33304.5916804275. The cubic root of 1109195827 is about 1035.1487030696.

The spelling of 1109195827 in words is "one billion, one hundred nine million, one hundred ninety-five thousand, eight hundred twenty-seven".