171281045 has 32 divisors (see below), whose sum is σ = 230307840. Its totient is φ = 121432320.

The previous prime is 171281009. The next prime is 171281053. The reversal of 171281045 is 540182171.

It is not a de Polignac number, because 171281045 - 2⁶ = 171280981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171280999 and 171281017.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 336251 + ... + 336759.

It is an arithmetic number, because the mean of its divisors is an integer number (7197120).

Almost surely, 2^171281045 is an apocalyptic number.

It is an amenable number.

171281045 is a deficient number, since it is larger than the sum of its proper divisors (59026795).

171281045 is a wasteful number, since it uses less digits than its factorization.

171281045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 171281045 is about 13087.4384430262. The cubic root of 171281045 is about 555.3538257284.

The spelling of 171281045 in words is "one hundred seventy-one million, two hundred eighty-one thousand, forty-five".