13122655 has 32 divisors (see below), whose sum is σ = 19611648. Its totient is φ = 8208000.

The previous prime is 13122653. The next prime is 13122671. The reversal of 13122655 is 55622131.

It is not a de Polignac number, because 13122655 - 2¹ = 13122653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122653) 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 31 ways as a sum of consecutive naturals, for example, 68610 + ... + 68800.

It is an arithmetic number, because the mean of its divisors is an integer number (612864).

Almost surely, 2^13122655 is an apocalyptic number.

13122655 is a deficient number, since it is larger than the sum of its proper divisors (6488993).

13122655 is a wasteful number, since it uses less digits than its factorization.

13122655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its digits is 1800, while the sum is 25.

The square root of 13122655 is about 3622.5205313428. The cubic root of 13122655 is about 235.8706499348.

Adding to 13122655 its reverse (55622131), we get a palindrome (68744786).

The spelling of 13122655 in words is "thirteen million, one hundred twenty-two thousand, six hundred fifty-five".