13651023 has 4 divisors (see below), whose sum is σ = 18201368. Its totient is φ = 9100680.

The previous prime is 13651019. The next prime is 13651031. The reversal of 13651023 is 32015631.

13651023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32015631 = 3 ⋅10671877.

It is not a de Polignac number, because 13651023 - 2² = 13651019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13651003) 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, 2275168 + ... + 2275173.

It is an arithmetic number, because the mean of its divisors is an integer number (4550342).

Almost surely, 2^13651023 is an apocalyptic number.

13651023 is a deficient number, since it is larger than the sum of its proper divisors (4550345).

13651023 is an equidigital number, since it uses as much as digits as its factorization.

13651023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550344.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13651023 is about 3694.7290834376. The cubic root of 13651023 is about 238.9947712190.

Adding to 13651023 its reverse (32015631), we get a palindrome (45666654).

The spelling of 13651023 in words is "thirteen million, six hundred fifty-one thousand, twenty-three".