1109144807 has 2 divisors, whose sum is σ = 1109144808. Its totient is φ = 1109144806.

The previous prime is 1109144797. The next prime is 1109144809. The reversal of 1109144807 is 7084419011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1109144807 is a prime.

Together with 1109144809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109144809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554572403 + 554572404.

It is an arithmetic number, because the mean of its divisors is an integer number (554572404).

Almost surely, 2^1109144807 is an apocalyptic number.

1109144807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109144807 is an equidigital number, since it uses as much as digits as its factorization.

1109144807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1109144807 is about 33303.8257111702. The cubic root of 1109144807 is about 1035.1328314818.

The spelling of 1109144807 in words is "one billion, one hundred nine million, one hundred forty-four thousand, eight hundred seven".