1050109 has 4 divisors (see below), whose sum is σ = 1059516. Its totient is φ = 1040704.

The previous prime is 1050083. The next prime is 1050139. The reversal of 1050109 is 9010501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44100 + 1006009 = 210^2 + 1003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1050109 is a prime.

It is a super-2 number, since 2×1050109² = 2205457823762, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1050092 and 1050101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4534 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (264879).

2^1050109 is an apocalyptic number.

It is an amenable number.

1050109 is a deficient number, since it is larger than the sum of its proper divisors (9407).

1050109 is an equidigital number, since it uses as much as digits as its factorization.

1050109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1050109 is about 1024.7482617697. The cubic root of 1050109 is about 101.6431526139.

The spelling of 1050109 in words is "one million, fifty thousand, one hundred nine".