13645171 has 2 divisors, whose sum is σ = 13645172. Its totient is φ = 13645170.

The previous prime is 13645157. The next prime is 13645183. The reversal of 13645171 is 17154631.

13645171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13645171 - 2⁷ = 13645043 is a prime.

It is not a weakly prime, because it can be changed into another prime (13615171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6822585 + 6822586.

It is an arithmetic number, because the mean of its divisors is an integer number (6822586).

Almost surely, 2^13645171 is an apocalyptic number.

13645171 is a deficient number, since it is larger than the sum of its proper divisors (1).

13645171 is an equidigital number, since it uses as much as digits as its factorization.

13645171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 13645171 is about 3693.9370595612. The cubic root of 13645171 is about 238.9606151145.

The spelling of 13645171 in words is "thirteen million, six hundred forty-five thousand, one hundred seventy-one".