13149523 has 2 divisors, whose sum is σ = 13149524. Its totient is φ = 13149522.

The previous prime is 13149509. The next prime is 13149571. The reversal of 13149523 is 32594131.

It is a weak prime.

It is an emirp because it is prime and its reverse (32594131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13149523 - 2¹⁷ = 13018451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13149491 and 13149500.

It is not a weakly prime, because it can be changed into another prime (13149593) 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 as a sum of consecutive naturals, namely, 6574761 + 6574762.

It is an arithmetic number, because the mean of its divisors is an integer number (6574762).

Almost surely, 2^13149523 is an apocalyptic number.

13149523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13149523 is an equidigital number, since it uses as much as digits as its factorization.

13149523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 13149523 is about 3626.2271026509. The cubic root of 13149523 is about 236.0315181021.

The spelling of 13149523 in words is "thirteen million, one hundred forty-nine thousand, five hundred twenty-three".