27080145 has 24 divisors (see below), whose sum is σ = 47250216. Its totient is φ = 14347008.

The previous prime is 27080129. The next prime is 27080159. The reversal of 27080145 is 54108072.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 26967249 = 336^2 + 5193^2 .

It is not a de Polignac number, because 27080145 - 2⁴ = 27080129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5149 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (1968759).

Almost surely, 2^27080145 is an apocalyptic number.

It is an amenable number.

27080145 is a deficient number, since it is larger than the sum of its proper divisors (20170071).

27080145 is a wasteful number, since it uses less digits than its factorization.

27080145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001 (or 3998 counting only the distinct ones).

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

The square root of 27080145 is about 5203.8586644912. The cubic root of 27080145 is about 300.2965401166.

It can be divided in two parts, 27080 and 145, that added together give a square (27225 = 165²).

The spelling of 27080145 in words is "twenty-seven million, eighty thousand, one hundred forty-five".