13656011 has 2 divisors, whose sum is σ = 13656012. Its totient is φ = 13656010.

The previous prime is 13655989. The next prime is 13656029. The reversal of 13656011 is 11065631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13656011 - 2¹⁰ = 13654987 is a prime.

It is not a weakly prime, because it can be changed into another prime (13656031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6828005 + 6828006.

It is an arithmetic number, because the mean of its divisors is an integer number (6828006).

Almost surely, 2^13656011 is an apocalyptic number.

13656011 is a deficient number, since it is larger than the sum of its proper divisors (1).

13656011 is an equidigital number, since it uses as much as digits as its factorization.

13656011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 13656011 is about 3695.4040374498. The cubic root of 13656011 is about 239.0238767483.

The spelling of 13656011 in words is "thirteen million, six hundred fifty-six thousand, eleven".