13845523 has 2 divisors, whose sum is σ = 13845524. Its totient is φ = 13845522.

The previous prime is 13845493. The next prime is 13845529. The reversal of 13845523 is 32554831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13845523 is a prime.

It is not a weakly prime, because it can be changed into another prime (13845529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6922761 + 6922762.

It is an arithmetic number, because the mean of its divisors is an integer number (6922762).

Almost surely, 2^13845523 is an apocalyptic number.

13845523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13845523 is an equidigital number, since it uses as much as digits as its factorization.

13845523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 13845523 is about 3720.9572693058. The cubic root of 13845523 is about 240.1244898132.

The spelling of 13845523 in words is "thirteen million, eight hundred forty-five thousand, five hundred twenty-three".