27121449 has 8 divisors (see below), whose sum is σ = 36203200. Its totient is φ = 18060336.

The previous prime is 27121447. The next prime is 27121453. The reversal of 27121449 is 94412172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27121449 - 2¹ = 27121447 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27121447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774 + ... + 7575.

It is an arithmetic number, because the mean of its divisors is an integer number (4525400).

Almost surely, 2^27121449 is an apocalyptic number.

It is an amenable number.

27121449 is a deficient number, since it is larger than the sum of its proper divisors (9081751).

27121449 is an equidigital number, since it uses as much as digits as its factorization.

27121449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10319.

The product of its digits is 4032, while the sum is 30.

The square root of 27121449 is about 5207.8257459327. The cubic root of 27121449 is about 300.4491383580.

The spelling of 27121449 in words is "twenty-seven million, one hundred twenty-one thousand, four hundred forty-nine".