12135127 has 4 divisors (see below), whose sum is σ = 12848976. Its totient is φ = 11421280.

The previous prime is 12135121. The next prime is 12135143. The reversal of 12135127 is 72153121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12135127 - 2⁷ = 12134999 is a prime.

It is a super-2 number, since 2×12135127² = 294522614612258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12135098 and 12135107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356899 + ... + 356932.

It is an arithmetic number, because the mean of its divisors is an integer number (3212244).

Almost surely, 2^12135127 is an apocalyptic number.

12135127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12135127 is a deficient number, since it is larger than the sum of its proper divisors (713849).

12135127 is an equidigital number, since it uses as much as digits as its factorization.

12135127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713848.

The product of its digits is 420, while the sum is 22.

The square root of 12135127 is about 3483.5509182442. The cubic root of 12135127 is about 229.7989863115.

Adding to 12135127 its reverse (72153121), we get a palindrome (84288248).

The spelling of 12135127 in words is "twelve million, one hundred thirty-five thousand, one hundred twenty-seven".