12534787 has 4 divisors (see below), whose sum is σ = 12542040. Its totient is φ = 12527536.

The previous prime is 12534779. The next prime is 12534803. The reversal of 12534787 is 78743521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78743521 = 4603 ⋅17107.

It is a cyclic number.

It is not a de Polignac number, because 12534787 - 2³ = 12534779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12531787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (3135510).

Almost surely, 2^12534787 is an apocalyptic number.

12534787 is a deficient number, since it is larger than the sum of its proper divisors (7253).

12534787 is an equidigital number, since it uses as much as digits as its factorization.

12534787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252.

The product of its digits is 47040, while the sum is 37.

The square root of 12534787 is about 3540.4501126269. The cubic root of 12534787 is about 232.2945315427.

The spelling of 12534787 in words is "twelve million, five hundred thirty-four thousand, seven hundred eighty-seven".