13203801 has 18 divisors (see below), whose sum is σ = 20654478. Its totient is φ = 8124480.

The previous prime is 13203797. The next prime is 13203811. The reversal of 13203801 is 10830231.

It can be written as a sum of positive squares in 3 ways, for example, as 416025 + 12787776 = 645^2 + 3576^2 .

It is not a de Polignac number, because 13203801 - 2² = 13203797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13203811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2820 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (1147471).

Almost surely, 2^13203801 is an apocalyptic number.

It is an amenable number.

13203801 is a deficient number, since it is larger than the sum of its proper divisors (7450677).

13203801 is a wasteful number, since it uses less digits than its factorization.

13203801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713 (or 8697 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 13203801 is about 3633.7034826744. The cubic root of 13203801 is about 236.3558323181.

The spelling of 13203801 in words is "thirteen million, two hundred three thousand, eight hundred one".