2109029 has 8 divisors (see below), whose sum is σ = 2314872. Its totient is φ = 1909440.

The previous prime is 2109013. The next prime is 2109049. The reversal of 2109029 is 9209012.

It can be written as a sum of positive squares in 4 ways, for example, as 664225 + 1444804 = 815^2 + 1202^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2109029 - 2⁴ = 2109013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2108995 and 2109013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (289359).

2^2109029 is an apocalyptic number.

It is an amenable number.

2109029 is a deficient number, since it is larger than the sum of its proper divisors (205843).

2109029 is a wasteful number, since it uses less digits than its factorization.

2109029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 2109029 is about 1452.2496341883. The cubic root of 2109029 is about 128.2411834493.

The spelling of 2109029 in words is "two million, one hundred nine thousand, twenty-nine".