13381523 has 2 divisors, whose sum is σ = 13381524. Its totient is φ = 13381522.

The previous prime is 13381507. The next prime is 13381549. The reversal of 13381523 is 32518331.

It is an a-pointer prime, because the next prime (13381549) can be obtained adding 13381523 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13381523 - 2⁴ = 13381507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13381492 and 13381501.

It is not a weakly prime, because it can be changed into another prime (13383523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6690761 + 6690762.

It is an arithmetic number, because the mean of its divisors is an integer number (6690762).

Almost surely, 2^13381523 is an apocalyptic number.

13381523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13381523 is an equidigital number, since it uses as much as digits as its factorization.

13381523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 13381523 is about 3658.0764070752. The cubic root of 13381523 is about 237.4115526610.

Adding to 13381523 its reverse (32518331), we get a palindrome (45899854).

The spelling of 13381523 in words is "thirteen million, three hundred eighty-one thousand, five hundred twenty-three".