13656122 has 4 divisors (see below), whose sum is σ = 20484186. Its totient is φ = 6828060.

The previous prime is 13656121. The next prime is 13656127. The reversal of 13656122 is 22165631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22165631 = 61 ⋅363371.

It can be written as a sum of positive squares in only one way, i.e., 8462281 + 5193841 = 2909^2 + 2279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13656091 and 13656100.

It is not an unprimeable number, because it can be changed into a prime (13656121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3414029 + ... + 3414032.

Almost surely, 2^13656122 is an apocalyptic number.

13656122 is a deficient number, since it is larger than the sum of its proper divisors (6828064).

13656122 is an equidigital number, since it uses as much as digits as its factorization.

13656122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828063.

The product of its digits is 2160, while the sum is 26.

The square root of 13656122 is about 3695.4190560747. The cubic root of 13656122 is about 239.0245243649.

The spelling of 13656122 in words is "thirteen million, six hundred fifty-six thousand, one hundred twenty-two".