27378145 has 8 divisors (see below), whose sum is σ = 34583040. Its totient is φ = 20749680.

The previous prime is 27378137. The next prime is 27378149. The reversal of 27378145 is 54187372.

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

It is not a de Polignac number, because 27378145 - 2³ = 27378137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27378149) 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, 144001 + ... + 144190.

It is an arithmetic number, because the mean of its divisors is an integer number (4322880).

Almost surely, 2^27378145 is an apocalyptic number.

It is an amenable number.

27378145 is a deficient number, since it is larger than the sum of its proper divisors (7204895).

27378145 is a wasteful number, since it uses less digits than its factorization.

27378145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288215.

The product of its digits is 47040, while the sum is 37.

The square root of 27378145 is about 5232.4129233079. The cubic root of 27378145 is about 301.3940490935.

The spelling of 27378145 in words is "twenty-seven million, three hundred seventy-eight thousand, one hundred forty-five".