13481247 has 8 divisors (see below), whose sum is σ = 19357744. Its totient is φ = 8296128.

The previous prime is 13481227. The next prime is 13481257. The reversal of 13481247 is 74218431.

13481247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13481247 - 2⁸ = 13480991 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 (13481207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172798 + ... + 172875.

It is an arithmetic number, because the mean of its divisors is an integer number (2419718).

Almost surely, 2^13481247 is an apocalyptic number.

13481247 is a deficient number, since it is larger than the sum of its proper divisors (5876497).

13481247 is a wasteful number, since it uses less digits than its factorization.

13481247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345689.

The product of its digits is 5376, while the sum is 30.

The square root of 13481247 is about 3671.6817672560. The cubic root of 13481247 is about 237.9998528822. Note that the first 3 decimals are identical.

Adding to 13481247 its reverse (74218431), we get a palindrome (87699678).

The spelling of 13481247 in words is "thirteen million, four hundred eighty-one thousand, two hundred forty-seven".