13539223 has 2 divisors, whose sum is σ = 13539224. Its totient is φ = 13539222.

The previous prime is 13539193. The next prime is 13539241. The reversal of 13539223 is 32293531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13539223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13539191 and 13539200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13539283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6769611 + 6769612.

It is an arithmetic number, because the mean of its divisors is an integer number (6769612).

Almost surely, 2^13539223 is an apocalyptic number.

13539223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13539223 is an equidigital number, since it uses as much as digits as its factorization.

13539223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 28.

The square root of 13539223 is about 3679.5683170720. The cubic root of 13539223 is about 238.3405371625.

The spelling of 13539223 in words is "thirteen million, five hundred thirty-nine thousand, two hundred twenty-three".