27003121 has 8 divisors (see below), whose sum is σ = 27417600. Its totient is φ = 26592048.

The previous prime is 27003107. The next prime is 27003131. The reversal of 27003121 is 12130072.

It is a happy number.

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 27003121 - 2¹⁵ = 26970353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27003095 and 27003104.

It is not an unprimeable number, because it can be changed into a prime (27003131) 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, 18210 + ... + 19636.

It is an arithmetic number, because the mean of its divisors is an integer number (3427200).

Almost surely, 2^27003121 is an apocalyptic number.

It is an amenable number.

27003121 is a deficient number, since it is larger than the sum of its proper divisors (414479).

27003121 is a wasteful number, since it uses less digits than its factorization.

27003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 27003121 is about 5196.4527323935. The cubic root of 27003121 is about 300.0115588139.

Adding to 27003121 its reverse (12130072), we get a palindrome (39133193).

The spelling of 27003121 in words is "twenty-seven million, three thousand, one hundred twenty-one".