27144101 has 4 divisors (see below), whose sum is σ = 27516012. Its totient is φ = 26772192.

The previous prime is 27144049. The next prime is 27144107. The reversal of 27144101 is 10144172.

It is a Cunningham number, because it is equal to 5210²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15413476 + 11730625 = 3926^2 + 3425^2 .

It is a cyclic number.

It is not a de Polignac number, because 27144101 - 2⁶ = 27144037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27144107) 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, 185846 + ... + 185991.

It is an arithmetic number, because the mean of its divisors is an integer number (6879003).

Almost surely, 2^27144101 is an apocalyptic number.

It is an amenable number.

27144101 is a deficient number, since it is larger than the sum of its proper divisors (371911).

27144101 is an equidigital number, since it uses as much as digits as its factorization.

27144101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371910.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 27144101 is about 5210.0000959693. Note that the first 4 decimals coincide. The cubic root of 27144101 is about 300.5327607340.

Adding to 27144101 its reverse (10144172), we get a palindrome (37288273).

The spelling of 27144101 in words is "twenty-seven million, one hundred forty-four thousand, one hundred one".