12810634 has 8 divisors (see below), whose sum is σ = 19878660. Its totient is φ = 6184416.

The previous prime is 12810631. The next prime is 12810647. The reversal of 12810634 is 43601821.

12810634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11594025 + 1216609 = 3405^2 + 1103^2 .

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

It is a super-2 number, since 2×12810634² = 328224686963912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12810599 and 12810608.

It is not an unprimeable number, because it can be changed into a prime (12810631) 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, 110379 + ... + 110494.

Almost surely, 2^12810634 is an apocalyptic number.

12810634 is a deficient number, since it is larger than the sum of its proper divisors (7068026).

12810634 is a wasteful number, since it uses less digits than its factorization.

12810634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220904.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12810634 is about 3579.1946021417. The cubic root of 12810634 is about 233.9861803025.

The spelling of 12810634 in words is "twelve million, eight hundred ten thousand, six hundred thirty-four".