12727137 has 16 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 8263632.

The previous prime is 12727129. The next prime is 12727139. The reversal of 12727137 is 73172721.

It is not a de Polignac number, because 12727137 - 2³ = 12727129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12727139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19348 + ... + 19994.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^12727137 is an apocalyptic number.

It is an amenable number.

12727137 is a deficient number, since it is larger than the sum of its proper divisors (4691103).

12727137 is an equidigital number, since it uses as much as digits as its factorization.

12727137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its digits is 4116, while the sum is 30.

The square root of 12727137 is about 3567.5113174312. The cubic root of 12727137 is about 233.4767143700.

Adding to 12727137 its reverse (73172721), we get a palindrome (85899858).

The spelling of 12727137 in words is "twelve million, seven hundred twenty-seven thousand, one hundred thirty-seven".