17142017 has 4 divisors (see below), whose sum is σ = 17397936. Its totient is φ = 16886100.

The previous prime is 17142011. The next prime is 17142019. The reversal of 17142017 is 71024171.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71024171 = 3299 ⋅21529.

It is a cyclic number.

It is not a de Polignac number, because 17142017 - 2⁶ = 17141953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17141983 and 17142001.

It is not an unprimeable number, because it can be changed into a prime (17142011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127859 + ... + 127992.

It is an arithmetic number, because the mean of its divisors is an integer number (4349484).

Almost surely, 2^17142017 is an apocalyptic number.

It is an amenable number.

17142017 is a deficient number, since it is larger than the sum of its proper divisors (255919).

17142017 is an equidigital number, since it uses as much as digits as its factorization.

17142017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255918.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 17142017 is about 4140.2918979222. The cubic root of 17142017 is about 257.8421856016.

Adding to 17142017 its reverse (71024171), we get a palindrome (88166188).

The spelling of 17142017 in words is "seventeen million, one hundred forty-two thousand, seventeen".