12225135 has 32 divisors (see below), whose sum is σ = 21385728. Its totient is φ = 5927040.

The previous prime is 12225107. The next prime is 12225149. The reversal of 12225135 is 53152221.

It is not a de Polignac number, because 12225135 - 2⁸ = 12224879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13404 + ... + 14286.

It is an arithmetic number, because the mean of its divisors is an integer number (668304).

Almost surely, 2^12225135 is an apocalyptic number.

12225135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12225135 is a deficient number, since it is larger than the sum of its proper divisors (9160593).

12225135 is a wasteful number, since it uses less digits than its factorization.

12225135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975.

The product of its digits is 600, while the sum is 21.

The square root of 12225135 is about 3496.4460527799. The cubic root of 12225135 is about 230.3657382080.

Adding to 12225135 its reverse (53152221), we get a palindrome (65377356).

The spelling of 12225135 in words is "twelve million, two hundred twenty-five thousand, one hundred thirty-five".