17130145 has 4 divisors (see below), whose sum is σ = 20556180. Its totient is φ = 13704112.

The previous prime is 17130143. The next prime is 17130151. The reversal of 17130145 is 54103171.

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 5678689 + 11451456 = 2383^2 + 3384^2 .

It is a cyclic number.

It is not a de Polignac number, because 17130145 - 2¹ = 17130143 is a prime.

It is a super-3 number, since 3×17130145³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (17130143) 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, 1713010 + ... + 1713019.

It is an arithmetic number, because the mean of its divisors is an integer number (5139045).

Almost surely, 2^17130145 is an apocalyptic number.

It is an amenable number.

17130145 is a deficient number, since it is larger than the sum of its proper divisors (3426035).

17130145 is an equidigital number, since it uses as much as digits as its factorization.

17130145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426034.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 17130145 is about 4138.8579342616. The cubic root of 17130145 is about 257.7826475015.

The spelling of 17130145 in words is "seventeen million, one hundred thirty thousand, one hundred forty-five".