13406523 has 32 divisors (see below), whose sum is σ = 20736576. Its totient is φ = 7630848.

The previous prime is 13406513. The next prime is 13406527. The reversal of 13406523 is 32560431.

It is a happy number.

13406523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13406523 - 2⁹ = 13406011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13406493 and 13406502.

It is not an unprimeable number, because it can be changed into a prime (13406527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48261 + ... + 48537.

It is an arithmetic number, because the mean of its divisors is an integer number (648018).

Almost surely, 2^13406523 is an apocalyptic number.

13406523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13406523 is a deficient number, since it is larger than the sum of its proper divisors (7330053).

13406523 is a wasteful number, since it uses less digits than its factorization.

13406523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

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

The square root of 13406523 is about 3661.4919090447. The cubic root of 13406523 is about 237.5593085493.

Adding to 13406523 its reverse (32560431), we get a palindrome (45966954).

The spelling of 13406523 in words is "thirteen million, four hundred six thousand, five hundred twenty-three".