13065803 has 4 divisors (see below), whose sum is σ = 13200600. Its totient is φ = 12931008.

The previous prime is 13065799. The next prime is 13065821. The reversal of 13065803 is 30856031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30856031 = 397 ⋅77723.

It is a cyclic number.

It is not a de Polignac number, because 13065803 - 2² = 13065799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13065853) 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, 67253 + ... + 67446.

It is an arithmetic number, because the mean of its divisors is an integer number (3300150).

Almost surely, 2^13065803 is an apocalyptic number.

13065803 is a deficient number, since it is larger than the sum of its proper divisors (134797).

13065803 is an equidigital number, since it uses as much as digits as its factorization.

13065803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134796.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13065803 is about 3614.6649913927. The cubic root of 13065803 is about 235.5295317146.

The spelling of 13065803 in words is "thirteen million, sixty-five thousand, eight hundred three".