13117641 has 8 divisors (see below), whose sum is σ = 17541984. Its totient is φ = 8719200.

The previous prime is 13117579. The next prime is 13117661. The reversal of 13117641 is 14671131.

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

It is not a de Polignac number, because 13117641 - 2²³ = 4729033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13117661) 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, 5260 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (2192748).

Almost surely, 2^13117641 is an apocalyptic number.

It is an amenable number.

13117641 is a deficient number, since it is larger than the sum of its proper divisors (4424343).

13117641 is a wasteful number, since it uses less digits than its factorization.

13117641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12951.

The product of its digits is 504, while the sum is 24.

The square root of 13117641 is about 3621.8284056537. The cubic root of 13117641 is about 235.8406050469.

Adding to 13117641 its reverse (14671131), we get a palindrome (27788772).

The spelling of 13117641 in words is "thirteen million, one hundred seventeen thousand, six hundred forty-one".