13361399 has 4 divisors (see below), whose sum is σ = 13370664. Its totient is φ = 13352136.

The previous prime is 13361393. The next prime is 13361401. The reversal of 13361399 is 99316331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99316331 = 109 ⋅911159.

It is a cyclic number.

It is not a de Polignac number, because 13361399 - 2⁸ = 13361143 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361393) 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, 1952 + ... + 5525.

It is an arithmetic number, because the mean of its divisors is an integer number (3342666).

Almost surely, 2^13361399 is an apocalyptic number.

13361399 is a deficient number, since it is larger than the sum of its proper divisors (9265).

13361399 is an equidigital number, since it uses as much as digits as its factorization.

13361399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264.

The product of its digits is 13122, while the sum is 35.

The square root of 13361399 is about 3655.3247461751. The cubic root of 13361399 is about 237.2924813346.

The spelling of 13361399 in words is "thirteen million, three hundred sixty-one thousand, three hundred ninety-nine".