13065601 has 4 divisors (see below), whose sum is σ = 13487104. Its totient is φ = 12644100.

The previous prime is 13065581. The next prime is 13065607. The reversal of 13065601 is 10656031.

13065601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13065601 - 2⁷ = 13065473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13065607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210705 + ... + 210766.

It is an arithmetic number, because the mean of its divisors is an integer number (3371776).

Almost surely, 2^13065601 is an apocalyptic number.

It is an amenable number.

13065601 is a deficient number, since it is larger than the sum of its proper divisors (421503).

13065601 is an equidigital number, since it uses as much as digits as its factorization.

13065601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421502.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13065601 is about 3614.6370495528. The cubic root of 13065601 is about 235.5283179300.

The spelling of 13065601 in words is "thirteen million, sixty-five thousand, six hundred one".