13100447 has 4 divisors (see below), whose sum is σ = 13124280. Its totient is φ = 13076616.

The previous prime is 13100401. The next prime is 13100459. The reversal of 13100447 is 74400131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74400131 = 13 ⋅5723087.

It is a cyclic number.

It is not a de Polignac number, because 13100447 - 2¹⁴ = 13084063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100947) 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, 11072 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (3281070).

Almost surely, 2^13100447 is an apocalyptic number.

13100447 is a deficient number, since it is larger than the sum of its proper divisors (23833).

13100447 is an equidigital number, since it uses as much as digits as its factorization.

13100447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23832.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13100447 is about 3619.4539643432. The cubic root of 13100447 is about 235.7375169897.

Adding to 13100447 its reverse (74400131), we get a palindrome (87500578).

The spelling of 13100447 in words is "thirteen million, one hundred thousand, four hundred forty-seven".