2109069 has 6 divisors (see below), whose sum is σ = 3046446. Its totient is φ = 1406040.

The previous prime is 2109067. The next prime is 2109097. The reversal of 2109069 is 9609012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 44100 = 1437^2 + 210^2 .

It is not a de Polignac number, because 2109069 - 2¹ = 2109067 is a prime.

It is a super-2 number, since 2×2109069² = 8896344093522, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117162 + ... + 117179.

It is an arithmetic number, because the mean of its divisors is an integer number (507741).

2^2109069 is an apocalyptic number.

It is an amenable number.

2109069 is a deficient number, since it is larger than the sum of its proper divisors (937377).

2109069 is a wasteful number, since it uses less digits than its factorization.

2109069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234347 (or 234344 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 2109069 is about 1452.2634058600. The cubic root of 2109069 is about 128.2419941881.

The spelling of 2109069 in words is "two million, one hundred nine thousand, sixty-nine".