27457145 has 16 divisors (see below), whose sum is σ = 34058640. Its totient is φ = 21233664.

The previous prime is 27457139. The next prime is 27457151. The reversal of 27457145 is 54175472.

It is an interprime number because it is at equal distance from previous prime (27457139) and next prime (27457151).

It can be written as a sum of positive squares in 8 ways, for example, as 30976 + 27426169 = 176^2 + 5237^2 .

It is a cyclic number.

It is not a de Polignac number, because 27457145 - 2⁶ = 27457081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35321 + ... + 36089.

It is an arithmetic number, because the mean of its divisors is an integer number (2128665).

Almost surely, 2^27457145 is an apocalyptic number.

It is an amenable number.

27457145 is a deficient number, since it is larger than the sum of its proper divisors (6601495).

27457145 is a wasteful number, since it uses less digits than its factorization.

27457145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its digits is 39200, while the sum is 35.

The square root of 27457145 is about 5239.9565837896. The cubic root of 27457145 is about 301.6836628839.

The spelling of 27457145 in words is "twenty-seven million, four hundred fifty-seven thousand, one hundred forty-five".