27445121 has 8 divisors (see below), whose sum is σ = 30362688. Its totient is φ = 24598000.

The previous prime is 27445109. The next prime is 27445129. The reversal of 27445121 is 12154472.

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 27445121 - 2²² = 23250817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27445129) 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, 16790 + ... + 18351.

It is an arithmetic number, because the mean of its divisors is an integer number (3795336).

Almost surely, 2^27445121 is an apocalyptic number.

It is an amenable number.

27445121 is a deficient number, since it is larger than the sum of its proper divisors (2917567).

27445121 is a wasteful number, since it uses less digits than its factorization.

27445121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35223.

The product of its digits is 2240, while the sum is 26.

The square root of 27445121 is about 5238.8091204013. The cubic root of 27445121 is about 301.6396188048.

Adding to 27445121 its reverse (12154472), we get a palindrome (39599593).

It can be divided in two parts, 274451 and 21, that added together give a palindrome (274472).

The spelling of 27445121 in words is "twenty-seven million, four hundred forty-five thousand, one hundred twenty-one".