109144787 has 2 divisors, whose sum is σ = 109144788. Its totient is φ = 109144786.

The previous prime is 109144733. The next prime is 109144801. The reversal of 109144787 is 787441901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109144787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109144727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54572393 + 54572394.

It is an arithmetic number, because the mean of its divisors is an integer number (54572394).

Almost surely, 2^109144787 is an apocalyptic number.

109144787 is a deficient number, since it is larger than the sum of its proper divisors (1).

109144787 is an equidigital number, since it uses as much as digits as its factorization.

109144787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 109144787 is about 10447.2382474987. The cubic root of 109144787 is about 477.8970311517.

The spelling of 109144787 in words is "one hundred nine million, one hundred forty-four thousand, seven hundred eighty-seven".