12918235 has 16 divisors (see below), whose sum is σ = 16984800. Its totient is φ = 9354240.

The previous prime is 12918229. The next prime is 12918259. The reversal of 12918235 is 53281921.

It is not a de Polignac number, because 12918235 - 2⁷ = 12918107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12918197 and 12918206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18859 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (1061550).

Almost surely, 2^12918235 is an apocalyptic number.

12918235 is a deficient number, since it is larger than the sum of its proper divisors (4066565).

12918235 is a wasteful number, since it uses less digits than its factorization.

12918235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 4320, while the sum is 31.

The square root of 12918235 is about 3594.1946246691. The cubic root of 12918235 is about 234.6394652617.

The spelling of 12918235 in words is "twelve million, nine hundred eighteen thousand, two hundred thirty-five".