27244121 has 4 divisors (see below), whose sum is σ = 28428672. Its totient is φ = 26059572.

The previous prime is 27244103. The next prime is 27244141. The reversal of 27244121 is 12144272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27244121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1184527 = 27244121 / (2 + 7 + 2 + 4 + 4 + 1 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27244141) 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, 592241 + ... + 592286.

It is an arithmetic number, because the mean of its divisors is an integer number (7107168).

Almost surely, 2^27244121 is an apocalyptic number.

It is an amenable number.

27244121 is a deficient number, since it is larger than the sum of its proper divisors (1184551).

27244121 is a wasteful number, since it uses less digits than its factorization.

27244121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184550.

The product of its digits is 896, while the sum is 23.

The square root of 27244121 is about 5219.5901180074. The cubic root of 27244121 is about 300.9014404890.

Adding to 27244121 its reverse (12144272), we get a palindrome (39388393).

The spelling of 27244121 in words is "twenty-seven million, two hundred forty-four thousand, one hundred twenty-one".