27146945 has 8 divisors (see below), whose sum is σ = 37230144. Its totient is φ = 18615024.

The previous prime is 27146939. The next prime is 27146957. The reversal of 27146945 is 54964172.

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 27146945 - 2⁸ = 27146689 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27146899 and 27146908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387779 + ... + 387848.

It is an arithmetic number, because the mean of its divisors is an integer number (4653768).

Almost surely, 2^27146945 is an apocalyptic number.

It is an amenable number.

27146945 is a deficient number, since it is larger than the sum of its proper divisors (10083199).

27146945 is an equidigital number, since it uses as much as digits as its factorization.

27146945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775639.

The product of its digits is 60480, while the sum is 38.

The square root of 27146945 is about 5210.2730254757. The cubic root of 27146945 is about 300.5432563886.

The spelling of 27146945 in words is "twenty-seven million, one hundred forty-six thousand, nine hundred forty-five".