13200245 has 16 divisors (see below), whose sum is σ = 16955568. Its totient is φ = 9830400.

The previous prime is 13200241. The next prime is 13200251. The reversal of 13200245 is 54200231.

It can be written as a sum of positive squares in 8 ways, for example, as 2184484 + 11015761 = 1478^2 + 3319^2 .

It is not a de Polignac number, because 13200245 - 2² = 13200241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13200241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7445 + ... + 9045.

It is an arithmetic number, because the mean of its divisors is an integer number (1059723).

Almost surely, 2^13200245 is an apocalyptic number.

It is an amenable number.

13200245 is a deficient number, since it is larger than the sum of its proper divisors (3755323).

13200245 is a wasteful number, since it uses less digits than its factorization.

13200245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 13200245 is about 3633.2141417758. The cubic root of 13200245 is about 236.3346122466.

Adding to 13200245 its reverse (54200231), we get a palindrome (67400476).

The spelling of 13200245 in words is "thirteen million, two hundred thousand, two hundred forty-five".