12534855 has 16 divisors (see below), whose sum is σ = 20127744. Its totient is φ = 6661280.

The previous prime is 12534803. The next prime is 12534857. The reversal of 12534855 is 55843521.

It is not a de Polignac number, because 12534855 - 2⁹ = 12534343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3322 + ... + 6008.

It is an arithmetic number, because the mean of its divisors is an integer number (1257984).

Almost surely, 2^12534855 is an apocalyptic number.

12534855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12534855 is a deficient number, since it is larger than the sum of its proper divisors (7592889).

12534855 is a wasteful number, since it uses less digits than its factorization.

12534855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006.

The product of its digits is 24000, while the sum is 33.

The square root of 12534855 is about 3540.4597159126. The cubic root of 12534855 is about 232.2949516004.

It can be divided in two parts, 125 and 34855, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 12534855 in words is "twelve million, five hundred thirty-four thousand, eight hundred fifty-five".