12240255 has 32 divisors (see below), whose sum is σ = 21648384. Its totient is φ = 5874176.

The previous prime is 12240227. The next prime is 12240271. The reversal of 12240255 is 55204221.

It is a happy number.

12240255 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12240255 - 2⁵ = 12240223 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, 4822 + ... + 6908.

It is an arithmetic number, because the mean of its divisors is an integer number (676512).

Almost surely, 2^12240255 is an apocalyptic number.

12240255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12240255 is a deficient number, since it is larger than the sum of its proper divisors (9408129).

12240255 is a wasteful number, since it uses less digits than its factorization.

12240255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 12240255 is about 3498.6075801667. The cubic root of 12240255 is about 230.4606709013.

Adding to 12240255 its reverse (55204221), we get a palindrome (67444476).

The spelling of 12240255 in words is "twelve million, two hundred forty thousand, two hundred fifty-five".