13005217247 has 8 divisors (see below), whose sum is σ = 14645171712. Its totient is φ = 11441539800.

The previous prime is 13005217231. The next prime is 13005217271. The reversal of 13005217247 is 74271250031.

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

It is a cyclic number.

It is not a de Polignac number, because 13005217247 - 2⁴ = 13005217231 is a prime.

It is a super-5 number, since 5×13005217247⁵ (a number of 52 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005217847) 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, 19068893 + ... + 19069574.

It is an arithmetic number, because the mean of its divisors is an integer number (1830646464).

Almost surely, 2^13005217247 is an apocalyptic number.

13005217247 is a deficient number, since it is larger than the sum of its proper divisors (1639954465).

13005217247 is a wasteful number, since it uses less digits than its factorization.

13005217247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38138509.

The product of its (nonzero) digits is 11760, while the sum is 32.

Adding to 13005217247 its reverse (74271250031), we get a palindrome (87276467278).

The spelling of 13005217247 in words is "thirteen billion, five million, two hundred seventeen thousand, two hundred forty-seven".