17120056 has 8 divisors (see below), whose sum is σ = 32100120. Its totient is φ = 8560024.

The previous prime is 17120039. The next prime is 17120057. The reversal of 17120056 is 65002171.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17120057) by changing a digit.

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 as a sum of consecutive naturals, namely, 1069996 + ... + 1070011.

It is an arithmetic number, because the mean of its divisors is an integer number (4012515).

Almost surely, 2^17120056 is an apocalyptic number.

It is an amenable number.

17120056 is a deficient number, since it is larger than the sum of its proper divisors (14980064).

17120056 is a wasteful number, since it uses less digits than its factorization.

17120056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140013 (or 2140009 counting only the distinct ones).

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

The square root of 17120056 is about 4137.6389402653. The cubic root of 17120056 is about 257.7320295240.

The spelling of 17120056 in words is "seventeen million, one hundred twenty thousand, fifty-six".