12555127 has 4 divisors (see below), whose sum is σ = 13520920. Its totient is φ = 11589336.

The previous prime is 12555121. The next prime is 12555149. The reversal of 12555127 is 72155521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72155521 = 19 ⋅3797659.

It is a cyclic number.

It is not a de Polignac number, because 12555127 - 2³ = 12555119 is a prime.

It is a super-2 number, since 2×12555127² = 315262427972258, 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 = 12555095 and 12555104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482877 + ... + 482902.

It is an arithmetic number, because the mean of its divisors is an integer number (3380230).

Almost surely, 2^12555127 is an apocalyptic number.

12555127 is a deficient number, since it is larger than the sum of its proper divisors (965793).

12555127 is an equidigital number, since it uses as much as digits as its factorization.

12555127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965792.

The product of its digits is 3500, while the sum is 28.

The square root of 12555127 is about 3543.3214643890. The cubic root of 12555127 is about 232.4201105258.

The spelling of 12555127 in words is "twelve million, five hundred fifty-five thousand, one hundred twenty-seven".