1043909117 has 2 divisors, whose sum is σ = 1043909118. Its totient is φ = 1043909116.

The previous prime is 1043909051. The next prime is 1043909137. The reversal of 1043909117 is 7119093401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1043871481 + 37636 = 32309^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043909117 - 2¹⁸ = 1043646973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043909137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521954558 + 521954559.

It is an arithmetic number, because the mean of its divisors is an integer number (521954559).

Almost surely, 2^1043909117 is an apocalyptic number.

It is an amenable number.

1043909117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043909117 is an equidigital number, since it uses as much as digits as its factorization.

1043909117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1043909117 is about 32309.5824330801. The cubic root of 1043909117 is about 1014.4272264849.

The spelling of 1043909117 in words is "one billion, forty-three million, nine hundred nine thousand, one hundred seventeen".