27136009 has 6 divisors (see below), whose sum is σ = 28639770. Its totient is φ = 25707456.

The previous prime is 27136003. The next prime is 27136027. The reversal of 27136009 is 90063172.

It can be written as a sum of positive squares in only one way, i.e., 24403600 + 2732409 = 4940^2 + 1653^2 .

It is not a de Polignac number, because 27136009 - 2¹¹ = 27133961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27136003) 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, 37224 + ... + 37945.

It is an arithmetic number, because the mean of its divisors is an integer number (4773295).

Almost surely, 2^27136009 is an apocalyptic number.

It is an amenable number.

27136009 is a deficient number, since it is larger than the sum of its proper divisors (1503761).

27136009 is an equidigital number, since it uses as much as digits as its factorization.

27136009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75207 (or 75188 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 27136009 is about 5209.2234546043. The cubic root of 27136009 is about 300.5028935595.

The spelling of 27136009 in words is "twenty-seven million, one hundred thirty-six thousand, nine".