12290255 has 4 divisors (see below), whose sum is σ = 14748312. Its totient is φ = 9832200.

The previous prime is 12290251. The next prime is 12290261. The reversal of 12290255 is 55209221.

12290255 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55209221 = 1931 ⋅28591.

It is not a de Polignac number, because 12290255 - 2² = 12290251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229021 + ... + 1229030.

It is an arithmetic number, because the mean of its divisors is an integer number (3687078).

Almost surely, 2^12290255 is an apocalyptic number.

12290255 is a deficient number, since it is larger than the sum of its proper divisors (2458057).

12290255 is an equidigital number, since it uses as much as digits as its factorization.

12290255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458056.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 12290255 is about 3505.7459976444. The cubic root of 12290255 is about 230.7740461531.

Adding to 12290255 its reverse (55209221), we get a palindrome (67499476).

The spelling of 12290255 in words is "twelve million, two hundred ninety thousand, two hundred fifty-five".