13502023 has 4 divisors (see below), whose sum is σ = 13967640. Its totient is φ = 13036408.

The previous prime is 13502011. The next prime is 13502089. The reversal of 13502023 is 32020531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32020531 = 23 ⋅1392197.

It is a cyclic number.

It is not a de Polignac number, because 13502023 - 2⁹ = 13501511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13501988 and 13502006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13502123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232765 + ... + 232822.

It is an arithmetic number, because the mean of its divisors is an integer number (3491910).

Almost surely, 2^13502023 is an apocalyptic number.

13502023 is a deficient number, since it is larger than the sum of its proper divisors (465617).

13502023 is an equidigital number, since it uses as much as digits as its factorization.

13502023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465616.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13502023 is about 3674.5098992927. The cubic root of 13502023 is about 238.1220509505.

Adding to 13502023 its reverse (32020531), we get a palindrome (45522554).

The spelling of 13502023 in words is "thirteen million, five hundred two thousand, twenty-three".