17125145 has 4 divisors (see below), whose sum is σ = 20550180. Its totient is φ = 13700112.

The previous prime is 17125127. The next prime is 17125151. The reversal of 17125145 is 54152171.

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 1860496 + 15264649 = 1364^2 + 3907^2 .

It is a cyclic number.

It is not a de Polignac number, because 17125145 - 2⁸ = 17124889 is a prime.

It is an unprimeable number.

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, 1712510 + ... + 1712519.

It is an arithmetic number, because the mean of its divisors is an integer number (5137545).

Almost surely, 2^17125145 is an apocalyptic number.

It is an amenable number.

17125145 is a deficient number, since it is larger than the sum of its proper divisors (3425035).

17125145 is an equidigital number, since it uses as much as digits as its factorization.

17125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425034.

The product of its digits is 1400, while the sum is 26.

The square root of 17125145 is about 4138.2538588153. The cubic root of 17125145 is about 257.7575642606.

The spelling of 17125145 in words is "seventeen million, one hundred twenty-five thousand, one hundred forty-five".