13605423 has 16 divisors (see below), whose sum is σ = 20686176. Its totient is φ = 7879680.

The previous prime is 13605421. The next prime is 13605433. The reversal of 13605423 is 32450631.

It is a happy number.

13605423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13605423 - 2¹ = 13605421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13605393 and 13605402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13605421) 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, 9598 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (1292886).

Almost surely, 2^13605423 is an apocalyptic number.

13605423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13605423 is a deficient number, since it is larger than the sum of its proper divisors (7080753).

13605423 is a wasteful number, since it uses less digits than its factorization.

13605423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20554.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13605423 is about 3688.5529683061. The cubic root of 13605423 is about 238.7283609309.

It can be divided in two parts, 13605 and 423, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13605423 in words is "thirteen million, six hundred five thousand, four hundred twenty-three".