13799245 has 4 divisors (see below), whose sum is σ = 16559100. Its totient is φ = 11039392.

The previous prime is 13799209. The next prime is 13799249. The reversal of 13799245 is 54299731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54299731 = 257 ⋅211283.

It can be written as a sum of positive squares in 2 ways, for example, as 9351364 + 4447881 = 3058^2 + 2109^2 .

It is a cyclic number.

It is not a de Polignac number, because 13799245 - 2¹⁵ = 13766477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13799198 and 13799207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13799249) 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 3 ways as a sum of consecutive naturals, for example, 1379920 + ... + 1379929.

It is an arithmetic number, because the mean of its divisors is an integer number (4139775).

Almost surely, 2^13799245 is an apocalyptic number.

It is an amenable number.

13799245 is a deficient number, since it is larger than the sum of its proper divisors (2759855).

13799245 is an equidigital number, since it uses as much as digits as its factorization.

13799245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759854.

The product of its digits is 68040, while the sum is 40.

The square root of 13799245 is about 3714.7335032274. The cubic root of 13799245 is about 239.8566563010.

The spelling of 13799245 in words is "thirteen million, seven hundred ninety-nine thousand, two hundred forty-five".