13200538 has 8 divisors (see below), whose sum is σ = 21323988. Its totient is φ = 6092544.

The previous prime is 13200503. The next prime is 13200557. The reversal of 13200538 is 83500231.

13200538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13198689 + 1849 = 3633^2 + 43^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253831 + ... + 253882.

Almost surely, 2^13200538 is an apocalyptic number.

13200538 is a deficient number, since it is larger than the sum of its proper divisors (8123450).

13200538 is a wasteful number, since it uses less digits than its factorization.

13200538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507728.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13200538 is about 3633.2544639758. The cubic root of 13200538 is about 236.3363608386.

Adding to 13200538 its reverse (83500231), we get a palindrome (96700769).

The spelling of 13200538 in words is "thirteen million, two hundred thousand, five hundred thirty-eight".