13645323 has 12 divisors (see below), whose sum is σ = 19743048. Its totient is φ = 9081600.

The previous prime is 13645321. The next prime is 13645351. The reversal of 13645323 is 32354631.

It is a happy number.

13645323 is a `hidden beast` number, since 13 + 645 + 3 + 2 + 3 = 666.

It is not a de Polignac number, because 13645323 - 2¹ = 13645321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13645321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7723 + ... + 9323.

It is an arithmetic number, because the mean of its divisors is an integer number (1645254).

Almost surely, 2^13645323 is an apocalyptic number.

13645323 is a deficient number, since it is larger than the sum of its proper divisors (6097725).

13645323 is a wasteful number, since it uses less digits than its factorization.

13645323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554 (or 2551 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 13645323 is about 3693.9576337581. The cubic root of 13645323 is about 238.9615024096.

Adding to 13645323 its reverse (32354631), we get a palindrome (45999954).

The spelling of 13645323 in words is "thirteen million, six hundred forty-five thousand, three hundred twenty-three".