27189245 has 4 divisors (see below), whose sum is σ = 32627100. Its totient is φ = 21751392.

The previous prime is 27189241. The next prime is 27189251. The reversal of 27189245 is 54298172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18267076 + 8922169 = 4274^2 + 2987^2 .

It is a cyclic number.

It is not a de Polignac number, because 27189245 - 2² = 27189241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27189199 and 27189208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27189241) 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, 2718920 + ... + 2718929.

It is an arithmetic number, because the mean of its divisors is an integer number (8156775).

Almost surely, 2^27189245 is an apocalyptic number.

It is an amenable number.

27189245 is a deficient number, since it is larger than the sum of its proper divisors (5437855).

27189245 is an equidigital number, since it uses as much as digits as its factorization.

27189245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437854.

The product of its digits is 40320, while the sum is 38.

The square root of 27189245 is about 5214.3307336608. The cubic root of 27189245 is about 300.6992761837.

The spelling of 27189245 in words is "twenty-seven million, one hundred eighty-nine thousand, two hundred forty-five".