171730146 has 16 divisors (see below), whose sum is σ = 392526144. Its totient is φ = 49065744.

The previous prime is 171730081. The next prime is 171730147. The reversal of 171730146 is 641037171.

171730146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (171730147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2044365 + ... + 2044448.

It is an arithmetic number, because the mean of its divisors is an integer number (24532884).

Almost surely, 2^171730146 is an apocalyptic number.

171730146 is an abundant number, since it is smaller than the sum of its proper divisors (220795998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171730146 is a wasteful number, since it uses less digits than its factorization.

171730146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088825.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 171730146 is about 13104.5849228428. The cubic root of 171730146 is about 555.8387836332.

The spelling of 171730146 in words is "one hundred seventy-one million, seven hundred thirty thousand, one hundred forty-six".