27081045 has 12 divisors (see below), whose sum is σ = 46940556. Its totient is φ = 14443200.

The previous prime is 27081031. The next prime is 27081049. The reversal of 27081045 is 54018072.

It can be written as a sum of positive squares in 2 ways, for example, as 12404484 + 14676561 = 3522^2 + 3831^2 .

It is not a de Polignac number, because 27081045 - 2⁹ = 27080533 is a prime.

It is a super-3 number, since 3×27081045³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27081049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300856 + ... + 300945.

It is an arithmetic number, because the mean of its divisors is an integer number (3911713).

Almost surely, 2^27081045 is an apocalyptic number.

It is an amenable number.

27081045 is a deficient number, since it is larger than the sum of its proper divisors (19859511).

27081045 is a wasteful number, since it uses less digits than its factorization.

27081045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601812 (or 601809 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 27081045 is about 5203.9451380659. The cubic root of 27081045 is about 300.2998668331.

The spelling of 27081045 in words is "twenty-seven million, eighty-one thousand, forty-five".