27018245 has 4 divisors (see below), whose sum is σ = 32421900. Its totient is φ = 21614592.

The previous prime is 27018241. The next prime is 27018259. The reversal of 27018245 is 54281072.

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 12623809 + 14394436 = 3553^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 27018245 - 2² = 27018241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27018241) 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, 2701820 + ... + 2701829.

It is an arithmetic number, because the mean of its divisors is an integer number (8105475).

Almost surely, 2^27018245 is an apocalyptic number.

It is an amenable number.

27018245 is a deficient number, since it is larger than the sum of its proper divisors (5403655).

27018245 is an equidigital number, since it uses as much as digits as its factorization.

27018245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403654.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 27018245 is about 5197.9077521634. The cubic root of 27018245 is about 300.0675588589.

The spelling of 27018245 in words is "twenty-seven million, eighteen thousand, two hundred forty-five".