27138193 has 8 divisors (see below), whose sum is σ = 27593928. Its totient is φ = 26686464.

The previous prime is 27138191. The next prime is 27138197. The reversal of 27138193 is 39183172.

It can be written as a sum of positive squares in 4 ways, for example, as 1046529 + 26091664 = 1023^2 + 5108^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27138193 - 2¹ = 27138191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27138191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14605 + ... + 16357.

It is an arithmetic number, because the mean of its divisors is an integer number (3449241).

Almost surely, 2^27138193 is an apocalyptic number.

It is an amenable number.

27138193 is a deficient number, since it is larger than the sum of its proper divisors (455735).

27138193 is a wasteful number, since it uses less digits than its factorization.

27138193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003.

The product of its digits is 9072, while the sum is 34.

The square root of 27138193 is about 5209.4330785605. The cubic root of 27138193 is about 300.5109551812.

The spelling of 27138193 in words is "twenty-seven million, one hundred thirty-eight thousand, one hundred ninety-three".