27133081 has 2 divisors, whose sum is σ = 27133082. Its totient is φ = 27133080.

The previous prime is 27133061. The next prime is 27133109. The reversal of 27133081 is 18033172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19891600 + 7241481 = 4460^2 + 2691^2 .

It is a cyclic number.

It is not a de Polignac number, because 27133081 - 2¹⁹ = 26608793 is a prime.

It is a super-2 number, since 2×27133081² = 1472408169105122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27133061) 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, 13566540 + 13566541.

It is an arithmetic number, because the mean of its divisors is an integer number (13566541).

Almost surely, 2^27133081 is an apocalyptic number.

It is an amenable number.

27133081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27133081 is an equidigital number, since it uses as much as digits as its factorization.

27133081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 27133081 is about 5208.9424070535. The cubic root of 27133081 is about 300.4920849925.

Subtracting from 27133081 its reverse (18033172), we obtain a palindrome (9099909).

The spelling of 27133081 in words is "twenty-seven million, one hundred thirty-three thousand, eighty-one".