171925485 has 16 divisors (see below), whose sum is σ = 284567040. Its totient is φ = 88531520.

The previous prime is 171925463. The next prime is 171925493. The reversal of 171925485 is 584529171.

It is not a de Polignac number, because 171925485 - 2¹⁸ = 171663341 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197181 + ... + 198050.

It is an arithmetic number, because the mean of its divisors is an integer number (17785440).

Almost surely, 2^171925485 is an apocalyptic number.

171925485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

171925485 is a deficient number, since it is larger than the sum of its proper divisors (112641555).

171925485 is a wasteful number, since it uses less digits than its factorization.

171925485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395268.

The product of its digits is 100800, while the sum is 42.

The square root of 171925485 is about 13112.0358831114. The cubic root of 171925485 is about 556.0494549543.

The spelling of 171925485 in words is "one hundred seventy-one million, nine hundred twenty-five thousand, four hundred eighty-five".