27133481 has 2 divisors, whose sum is σ = 27133482. Its totient is φ = 27133480.

The previous prime is 27133453. The next prime is 27133499. The reversal of 27133481 is 18433172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17147881 + 9985600 = 4141^2 + 3160^2 .

It is a cyclic number.

It is not a de Polignac number, because 27133481 - 2⁶ = 27133417 is a prime.

It is a super-2 number, since 2×27133481² = 1472451582354722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27133441) 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 as a sum of consecutive naturals, namely, 13566740 + 13566741.

It is an arithmetic number, because the mean of its divisors is an integer number (13566741).

Almost surely, 2^27133481 is an apocalyptic number.

It is an amenable number.

27133481 is a deficient number, since it is larger than the sum of its proper divisors (1).

27133481 is an equidigital number, since it uses as much as digits as its factorization.

27133481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 27133481 is about 5208.9808024219. The cubic root of 27133481 is about 300.4935616185.

The spelling of 27133481 in words is "twenty-seven million, one hundred thirty-three thousand, four hundred eighty-one".