13061617 has 4 divisors (see below), whose sum is σ = 13161456. Its totient is φ = 12961780.

The previous prime is 13061611. The next prime is 13061639. The reversal of 13061617 is 71616031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13061617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13061591 and 13061600.

It is not an unprimeable number, because it can be changed into a prime (13061611) 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, 49723 + ... + 49984.

It is an arithmetic number, because the mean of its divisors is an integer number (3290364).

Almost surely, 2^13061617 is an apocalyptic number.

It is an amenable number.

13061617 is a deficient number, since it is larger than the sum of its proper divisors (99839).

13061617 is an equidigital number, since it uses as much as digits as its factorization.

13061617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99838.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 13061617 is about 3614.0859148615. The cubic root of 13061617 is about 235.5043761761.

Adding to 13061617 its reverse (71616031), we get a palindrome (84677648).

The spelling of 13061617 in words is "thirteen million, sixty-one thousand, six hundred seventeen".