671125 has 32 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 417600.

The previous prime is 671123. The next prime is 671131. The reversal of 671125 is 521176.

It is not a de Polignac number, because 671125 - 2¹ = 671123 is a prime.

Its product of digits (420) is a multiple of the sum of its prime divisors (84).

It is a junction number, because it is equal to n+sod(n) for n = 671096 and 671105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671123) 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 31 ways as a sum of consecutive naturals, for example, 11346 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁶⁷¹¹²⁵ is an apocalyptic number.

671125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

671125 is a deficient number, since it is larger than the sum of its proper divisors (377195).

671125 is a wasteful number, since it uses less digits than its factorization.

671125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 84 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 671125 is about 819.2221920822. Note that the first 3 decimals coincide. The cubic root of 671125 is about 87.5523496263.

The spelling of 671125 in words is "six hundred seventy-one thousand, one hundred twenty-five".