13623523 has 2 divisors, whose sum is σ = 13623524. Its totient is φ = 13623522.

The previous prime is 13623509. The next prime is 13623541. The reversal of 13623523 is 32532631.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32532631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13623523 - 2¹³ = 13615331 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (13623503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6811761 + 6811762.

It is an arithmetic number, because the mean of its divisors is an integer number (6811762).

Almost surely, 2^13623523 is an apocalyptic number.

13623523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13623523 is an equidigital number, since it uses as much as digits as its factorization.

13623523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 13623523 is about 3691.0056895107. The cubic root of 13623523 is about 238.8341782609.

The spelling of 13623523 in words is "thirteen million, six hundred twenty-three thousand, five hundred twenty-three".