27045109 has 12 divisors (see below), whose sum is σ = 33881484. Its totient is φ = 21397824.

The previous prime is 27045103. The next prime is 27045119. The reversal of 27045109 is 90154072.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15038884 + 12006225 = 3878^2 + 3465^2 .

It is not a de Polignac number, because 27045109 - 2³ = 27045101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27045101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20592 + ... + 21865.

It is an arithmetic number, because the mean of its divisors is an integer number (2823457).

Almost surely, 2^27045109 is an apocalyptic number.

It is an amenable number.

27045109 is a deficient number, since it is larger than the sum of its proper divisors (6836375).

27045109 is a wasteful number, since it uses less digits than its factorization.

27045109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42484 (or 42477 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 27045109 is about 5200.4912267977. The cubic root of 27045109 is about 300.1669774149.

The spelling of 27045109 in words is "twenty-seven million, forty-five thousand, one hundred nine".