1023109 has 4 divisors (see below), whose sum is σ = 1067616. Its totient is φ = 978604.

The previous prime is 1023107. The next prime is 1023133. The reversal of 1023109 is 9013201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9013201 = 19 ⋅474379.

It is not a de Polignac number, because 1023109 - 2¹ = 1023107 is a prime.

It is a Duffinian number.

1023109 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1023092 and 1023101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22219 + ... + 22264.

It is an arithmetic number, because the mean of its divisors is an integer number (266904).

2^1023109 is an apocalyptic number.

It is an amenable number.

1023109 is a deficient number, since it is larger than the sum of its proper divisors (44507).

1023109 is an equidigital number, since it uses as much as digits as its factorization.

1023109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44506.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1023109 is about 1011.4885071023. The cubic root of 1023109 is about 100.7644414028.

The spelling of 1023109 in words is "one million, twenty-three thousand, one hundred nine".