13875523 has 2 divisors, whose sum is σ = 13875524. Its totient is φ = 13875522.

The previous prime is 13875517. The next prime is 13875527. The reversal of 13875523 is 32557831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13875523 is a prime.

It is not a weakly prime, because it can be changed into another prime (13875527) 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, 6937761 + 6937762.

It is an arithmetic number, because the mean of its divisors is an integer number (6937762).

Almost surely, 2^13875523 is an apocalyptic number.

13875523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13875523 is an equidigital number, since it uses as much as digits as its factorization.

13875523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 13875523 is about 3724.9863086997. The cubic root of 13875523 is about 240.2977958466.

The spelling of 13875523 in words is "thirteen million, eight hundred seventy-five thousand, five hundred twenty-three".