12235545 has 72 divisors (see below), whose sum is σ = 25608960. Its totient is φ = 5382720.

The previous prime is 12235543. The next prime is 12235547. The reversal of 12235545 is 54553221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12235543) and next prime (12235547).

It is not a de Polignac number, because 12235545 - 2¹ = 12235543 is a prime.

It is a super-2 number, since 2×12235545² = 299417122894050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12235543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 68266 + ... + 68444.

It is an arithmetic number, because the mean of its divisors is an integer number (355680).

Almost surely, 2^12235545 is an apocalyptic number.

12235545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12235545 is an abundant number, since it is smaller than the sum of its proper divisors (13373415).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12235545 is a wasteful number, since it uses less digits than its factorization.

12235545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 12235545 is about 3497.9343904653. The cubic root of 12235545 is about 230.4311070015.

Adding to 12235545 its reverse (54553221), we get a palindrome (66788766).

The spelling of 12235545 in words is "twelve million, two hundred thirty-five thousand, five hundred forty-five".