13351717 has 4 divisors (see below), whose sum is σ = 13397580. Its totient is φ = 13305856.

The previous prime is 13351697. The next prime is 13351733. The reversal of 13351717 is 71715331.

It is a Cunningham number, because it is equal to 3654²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12630916 + 720801 = 3554^2 + 849^2 .

It is a cyclic number.

It is not a de Polignac number, because 13351717 - 2⁷ = 13351589 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 (13351747) 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, 22492 + ... + 23077.

It is an arithmetic number, because the mean of its divisors is an integer number (3349395).

Almost surely, 2^13351717 is an apocalyptic number.

It is an amenable number.

13351717 is a deficient number, since it is larger than the sum of its proper divisors (45863).

13351717 is an equidigital number, since it uses as much as digits as its factorization.

13351717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45862.

The product of its digits is 2205, while the sum is 28.

The square root of 13351717 is about 3654.0001368363. Note that the first 3 decimals coincide. The cubic root of 13351717 is about 237.2351514856.

The spelling of 13351717 in words is "thirteen million, three hundred fifty-one thousand, seven hundred seventeen".