12635530 has 16 divisors (see below), whose sum is σ = 23084640. Its totient is φ = 4978512.

The previous prime is 12635509. The next prime is 12635531. The reversal of 12635530 is 3553621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12635495 and 12635504.

It is not an unprimeable number, because it can be changed into a prime (12635531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8760 + ... + 10099.

It is an arithmetic number, because the mean of its divisors is an integer number (1442790).

Almost surely, 2^12635530 is an apocalyptic number.

12635530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12635530 is a deficient number, since it is larger than the sum of its proper divisors (10449110).

12635530 is a wasteful number, since it uses less digits than its factorization.

12635530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18933.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 12635530 is about 3554.6490684736. The cubic root of 12635530 is about 232.9151944434.

The spelling of 12635530 in words is "twelve million, six hundred thirty-five thousand, five hundred thirty".