27049121 has 4 divisors (see below), whose sum is σ = 29508144. Its totient is φ = 24590100.

The previous prime is 27049097. The next prime is 27049123. The reversal of 27049121 is 12194072.

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-27049121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27049123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229495 + ... + 1229516.

It is an arithmetic number, because the mean of its divisors is an integer number (7377036).

Almost surely, 2^27049121 is an apocalyptic number.

It is an amenable number.

27049121 is a deficient number, since it is larger than the sum of its proper divisors (2459023).

27049121 is a wasteful number, since it uses less digits than its factorization.

27049121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459022.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 27049121 is about 5200.8769452853. The cubic root of 27049121 is about 300.1818194130.

The spelling of 27049121 in words is "twenty-seven million, forty-nine thousand, one hundred twenty-one".