68170245 has 64 divisors (see below), whose sum is σ = 130491648. Its totient is φ = 29952000.

The previous prime is 68170237. The next prime is 68170279. The reversal of 68170245 is 54207186.

It is not a de Polignac number, because 68170245 - 2³ = 68170237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130585 + ... + 131105.

It is an arithmetic number, because the mean of its divisors is an integer number (2038932).

Almost surely, 2^68170245 is an apocalyptic number.

68170245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68170245 is a deficient number, since it is larger than the sum of its proper divisors (62321403).

68170245 is a wasteful number, since it uses less digits than its factorization.

68170245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 68170245 is about 8256.5274177465. The cubic root of 68170245 is about 408.5058544445.

The spelling of 68170245 in words is "sixty-eight million, one hundred seventy thousand, two hundred forty-five".