13454247 has 4 divisors (see below), whose sum is σ = 17939000. Its totient is φ = 8969496.

The previous prime is 13454239. The next prime is 13454249. The reversal of 13454247 is 74245431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13454247 - 2³ = 13454239 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 (13454249) 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, 2242372 + ... + 2242377.

It is an arithmetic number, because the mean of its divisors is an integer number (4484750).

Almost surely, 2^13454247 is an apocalyptic number.

13454247 is a deficient number, since it is larger than the sum of its proper divisors (4484753).

13454247 is an equidigital number, since it uses as much as digits as its factorization.

13454247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484752.

The product of its digits is 13440, while the sum is 30.

The square root of 13454247 is about 3668.0031352222. The cubic root of 13454247 is about 237.8408594112.

Adding to 13454247 its reverse (74245431), we get a palindrome (87699678).

It can be divided in two parts, 1345424 and 7, that added together give a palindrome (1345431).

The spelling of 13454247 in words is "thirteen million, four hundred fifty-four thousand, two hundred forty-seven".