13445023 has 4 divisors (see below), whose sum is σ = 13808440. Its totient is φ = 13081608.

The previous prime is 13445021. The next prime is 13445039. The reversal of 13445023 is 32054431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32054431 = 151 ⋅212281.

It is a cyclic number.

It is not a de Polignac number, because 13445023 - 2¹ = 13445021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13444985 and 13445003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181653 + ... + 181726.

It is an arithmetic number, because the mean of its divisors is an integer number (3452110).

Almost surely, 2^13445023 is an apocalyptic number.

13445023 is a deficient number, since it is larger than the sum of its proper divisors (363417).

13445023 is an equidigital number, since it uses as much as digits as its factorization.

13445023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363416.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13445023 is about 3666.7455597573. The cubic root of 13445023 is about 237.7864937864.

Adding to 13445023 its reverse (32054431), we get a palindrome (45499454).

The spelling of 13445023 in words is "thirteen million, four hundred forty-five thousand, twenty-three".