27189146 has 4 divisors (see below), whose sum is σ = 40783722. Its totient is φ = 13594572.

The previous prime is 27189143. The next prime is 27189161. The reversal of 27189146 is 64198172.

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

It can be written as a sum of positive squares in only one way, i.e., 26265625 + 923521 = 5125^2 + 961^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27189143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6797285 + ... + 6797288.

Almost surely, 2^27189146 is an apocalyptic number.

27189146 is a deficient number, since it is larger than the sum of its proper divisors (13594576).

27189146 is a wasteful number, since it uses less digits than its factorization.

27189146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13594575.

The product of its digits is 24192, while the sum is 38.

The square root of 27189146 is about 5214.3212405835. The cubic root of 27189146 is about 300.6989112200.

The spelling of 27189146 in words is "twenty-seven million, one hundred eighty-nine thousand, one hundred forty-six".