12531634 has 8 divisors (see below), whose sum is σ = 18868140. Its totient is φ = 6242256.

The previous prime is 12531593. The next prime is 12531637. The reversal of 12531634 is 43613521.

It can be written as a sum of positive squares in 2 ways, for example, as 8910225 + 3621409 = 2985^2 + 1903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12531599 and 12531608.

It is not an unprimeable number, because it can be changed into a prime (12531637) 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, 11109 + ... + 12184.

Almost surely, 2^12531634 is an apocalyptic number.

12531634 is a deficient number, since it is larger than the sum of its proper divisors (6336506).

12531634 is a wasteful number, since it uses less digits than its factorization.

12531634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23564.

The product of its digits is 2160, while the sum is 25.

The square root of 12531634 is about 3540.0048022566. The cubic root of 12531634 is about 232.2750527892.

It can be divided in two parts, 1253 and 1634, that multiplied together give a palindrome (2047402).

The spelling of 12531634 in words is "twelve million, five hundred thirty-one thousand, six hundred thirty-four".