17272145 has 12 divisors (see below), whose sum is σ = 22782900. Its totient is φ = 12561120.

The previous prime is 17272133. The next prime is 17272169. The reversal of 17272145 is 54127271.

It can be written as a sum of positive squares in 2 ways, for example, as 4648336 + 12623809 = 2156^2 + 3553^2 .

It is not a de Polignac number, because 17272145 - 2¹² = 17268049 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 11 ways as a sum of consecutive naturals, for example, 13670 + ... + 14879.

It is an arithmetic number, because the mean of its divisors is an integer number (1898575).

Almost surely, 2^17272145 is an apocalyptic number.

It is an amenable number.

17272145 is a deficient number, since it is larger than the sum of its proper divisors (5510755).

17272145 is a wasteful number, since it uses less digits than its factorization.

17272145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28576 (or 28565 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 17272145 is about 4155.9770211107. The cubic root of 17272145 is about 258.4929830599.

The spelling of 17272145 in words is "seventeen million, two hundred seventy-two thousand, one hundred forty-five".