27103213 has 2 divisors, whose sum is σ = 27103214. Its totient is φ = 27103212.

The previous prime is 27103211. The next prime is 27103217. The reversal of 27103213 is 31230172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19474569 + 7628644 = 4413^2 + 2762^2 .

It is a cyclic number.

It is not a de Polignac number, because 27103213 - 2¹ = 27103211 is a prime.

Together with 27103211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27103211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13551606 + 13551607.

It is an arithmetic number, because the mean of its divisors is an integer number (13551607).

Almost surely, 2^27103213 is an apocalyptic number.

It is an amenable number.

27103213 is a deficient number, since it is larger than the sum of its proper divisors (1).

27103213 is an equidigital number, since it uses as much as digits as its factorization.

27103213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 27103213 is about 5206.0746248973. The cubic root of 27103213 is about 300.3817843001.

Adding to 27103213 its reverse (31230172), we get a palindrome (58333385).

The spelling of 27103213 in words is "twenty-seven million, one hundred three thousand, two hundred thirteen".