109069 has 4 divisors (see below), whose sum is σ = 112860. Its totient is φ = 105280.
The previous prime is 109063. The next prime is 109073. The reversal of 109069 is 960901.
109069 = T30 + T31 + ... + T87.
109069 is nontrivially palindromic in base 3.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 960901 = 149 ⋅6449.
It can be written as a sum of positive squares in 2 ways, for example, as 52900 + 56169 = 230^2 + 237^2 .
It is a cyclic number.
It is not a de Polignac number, because 109069 - 25 = 109037 is a prime.
It is a super-2 number, since 2×1090692 = 23792093522, which contains 22 as substring.
It is an Ulam number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (109063) 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, 1852 + ... + 1909.
It is an arithmetic number, because the mean of its divisors is an integer number (28215).
2109069 is an apocalyptic number.
It is an amenable number.
109069 is a deficient number, since it is larger than the sum of its proper divisors (3791).
109069 is an equidigital number, since it uses as much as digits as its factorization.
109069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3790.
The product of its (nonzero) digits is 486, while the sum is 25.
The square root of 109069 is about 330.2559613391. The cubic root of 109069 is about 47.7786392890.
The spelling of 109069 in words is "one hundred nine thousand, sixty-nine".
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