12633530 has 32 divisors (see below), whose sum is σ = 27990144. Its totient is φ = 3998016.

The previous prime is 12633521. The next prime is 12633547. The reversal of 12633530 is 3533621.

It is a junction number, because it is equal to n+sod(n) for n = 12633496 and 12633505.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6032 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (874692).

Almost surely, 2^12633530 is an apocalyptic number.

12633530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12633530 is an abundant number, since it is smaller than the sum of its proper divisors (15356614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12633530 is a wasteful number, since it uses less digits than its factorization.

12633530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13910.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 12633530 is about 3554.3677356177. The cubic root of 12633530 is about 232.9029048925.

Subtracting from 12633530 its reverse (3533621), we obtain a palindrome (9099909).

The spelling of 12633530 in words is "twelve million, six hundred thirty-three thousand, five hundred thirty".