171055938 has 16 divisors (see below), whose sum is σ = 362236320. Its totient is φ = 53664576.

The previous prime is 171055933. The next prime is 171055939. The reversal of 171055938 is 839550171.

171055938 is nontrivially palindromic in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 171055896 and 171055905.

It is not an unprimeable number, because it can be changed into a prime (171055931) 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 in 7 ways as a sum of consecutive naturals, for example, 838408 + ... + 838611.

It is an arithmetic number, because the mean of its divisors is an integer number (22639770).

Almost surely, 2^171055938 is an apocalyptic number.

171055938 is an abundant number, since it is smaller than the sum of its proper divisors (191180382).

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

171055938 is a wasteful number, since it uses less digits than its factorization.

171055938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677041.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 171055938 is about 13078.8354986214. The cubic root of 171055938 is about 555.1104268544.

The spelling of 171055938 in words is "one hundred seventy-one million, fifty-five thousand, nine hundred thirty-eight".