27145107 has 36 divisors (see below), whose sum is σ = 45649656. Its totient is φ = 15361920.

The previous prime is 27145103. The next prime is 27145147. The reversal of 27145107 is 70154172.

It is not a de Polignac number, because 27145107 - 2² = 27145103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27145103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 213678 + ... + 213804.

It is an arithmetic number, because the mean of its divisors is an integer number (1268046).

Almost surely, 2^27145107 is an apocalyptic number.

27145107 is a deficient number, since it is larger than the sum of its proper divisors (18504549).

27145107 is a wasteful number, since it uses less digits than its factorization.

27145107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 27145107 is about 5210.0966401786. The cubic root of 27145107 is about 300.5364734157.

Adding to 27145107 its reverse (70154172), we get a palindrome (97299279).

The spelling of 27145107 in words is "twenty-seven million, one hundred forty-five thousand, one hundred seven".