1042109 has 2 divisors, whose sum is σ = 1042110. Its totient is φ = 1042108.

The previous prime is 1042103. The next prime is 1042121. The reversal of 1042109 is 9012401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006009 + 36100 = 1003^2 + 190^2 .

It is an emirp because it is prime and its reverse (9012401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042109 - 2⁸ = 1041853 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521054 + 521055.

It is an arithmetic number, because the mean of its divisors is an integer number (521055).

2^1042109 is an apocalyptic number.

It is an amenable number.

1042109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042109 is an equidigital number, since it uses as much as digits as its factorization.

1042109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1042109 is about 1020.8374013524. The cubic root of 1042109 is about 101.3843798193.

The spelling of 1042109 in words is "one million, forty-two thousand, one hundred nine".