27345105 has 12 divisors (see below), whose sum is σ = 47398260. Its totient is φ = 14584032.

The previous prime is 27345103. The next prime is 27345107. The reversal of 27345105 is 50154372.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27345103) and next prime (27345107).

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 19793601 = 2748^2 + 4449^2 .

It is not a de Polignac number, because 27345105 - 2¹ = 27345103 is a prime.

It is a super-2 number, since 2×27345105² = 1495509534922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27345103) 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, 303790 + ... + 303879.

It is an arithmetic number, because the mean of its divisors is an integer number (3949855).

Almost surely, 2^27345105 is an apocalyptic number.

It is an amenable number.

27345105 is a deficient number, since it is larger than the sum of its proper divisors (20053155).

27345105 is a wasteful number, since it uses less digits than its factorization.

27345105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607680 (or 607677 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 27345105 is about 5229.2547270142. The cubic root of 27345105 is about 301.2727593096.

Adding to 27345105 its reverse (50154372), we get a palindrome (77499477).

The spelling of 27345105 in words is "twenty-seven million, three hundred forty-five thousand, one hundred five".