13656145 has 16 divisors (see below), whose sum is σ = 17026128. Its totient is φ = 10506240.

The previous prime is 13656143. The next prime is 13656161. The reversal of 13656145 is 54165631.

13656145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 746496 + 12909649 = 864^2 + 3593^2 .

It is not a de Polignac number, because 13656145 - 2¹ = 13656143 is a prime.

It is a super-2 number, since 2×13656145² = 372980592522050, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (10800) is a multiple of the sum of its prime divisors (900).

It is not an unprimeable number, because it can be changed into a prime (13656143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17565 + ... + 18325.

It is an arithmetic number, because the mean of its divisors is an integer number (1064133).

Almost surely, 2^13656145 is an apocalyptic number.

It is an amenable number.

13656145 is a deficient number, since it is larger than the sum of its proper divisors (3369983).

13656145 is an equidigital number, since it uses as much as digits as its factorization.

13656145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its digits is 10800, while the sum is 31.

The square root of 13656145 is about 3695.4221680344. The cubic root of 13656145 is about 239.0246585553.

The spelling of 13656145 in words is "thirteen million, six hundred fifty-six thousand, one hundred forty-five".