13345817 has 4 divisors (see below), whose sum is σ = 13495860. Its totient is φ = 13195776.

The previous prime is 13345811. The next prime is 13345823. The reversal of 13345817 is 71854331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71854331 = 347 ⋅207073.

It is an interprime number because it is at equal distance from previous prime (13345811) and next prime (13345823).

It can be written as a sum of positive squares in 2 ways, for example, as 1860496 + 11485321 = 1364^2 + 3389^2 .

It is a cyclic number.

It is not a de Polignac number, because 13345817 - 2¹² = 13341721 is a prime.

It is a super-2 number, since 2×13345817² = 356221662794978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13345811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74888 + ... + 75065.

It is an arithmetic number, because the mean of its divisors is an integer number (3373965).

Almost surely, 2^13345817 is an apocalyptic number.

It is an amenable number.

13345817 is a deficient number, since it is larger than the sum of its proper divisors (150043).

13345817 is an equidigital number, since it uses as much as digits as its factorization.

13345817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150042.

The product of its digits is 10080, while the sum is 32.

The square root of 13345817 is about 3653.1927132304. The cubic root of 13345817 is about 237.2002023323.

The spelling of 13345817 in words is "thirteen million, three hundred forty-five thousand, eight hundred seventeen".