17145010409 has 4 divisors (see below), whose sum is σ = 17145646980. Its totient is φ = 17144373840.

The previous prime is 17145010403. The next prime is 17145010417. The reversal of 17145010409 is 90401054171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90401054171 = 43 ⋅2102350097.

It can be written as a sum of positive squares in 2 ways, for example, as 6241474009 + 10903536400 = 79003^2 + 104420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17145010409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17145010403) 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, 276014 + ... + 332375.

It is an arithmetic number, because the mean of its divisors is an integer number (4286411745).

Almost surely, 2^17145010409 is an apocalyptic number.

It is an amenable number.

17145010409 is a deficient number, since it is larger than the sum of its proper divisors (636571).

17145010409 is an equidigital number, since it uses as much as digits as its factorization.

17145010409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636570.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 17145010409 in words is "seventeen billion, one hundred forty-five million, ten thousand, four hundred nine".