12536918 has 4 divisors (see below), whose sum is σ = 18805380. Its totient is φ = 6268458.

The previous prime is 12536911. The next prime is 12536929. The reversal of 12536918 is 81963521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3134228 + ... + 3134231.

It is an arithmetic number, because the mean of its divisors is an integer number (4701345).

Almost surely, 2^12536918 is an apocalyptic number.

12536918 is a deficient number, since it is larger than the sum of its proper divisors (6268462).

12536918 is an equidigital number, since it uses as much as digits as its factorization.

12536918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268461.

The product of its digits is 12960, while the sum is 35.

The square root of 12536918 is about 3540.7510502717. The cubic root of 12536918 is about 232.3076946861.

The spelling of 12536918 in words is "twelve million, five hundred thirty-six thousand, nine hundred eighteen".