671130 has 24 divisors (see below), whose sum is σ = 1745172. Its totient is φ = 178944.

The previous prime is 671123. The next prime is 671131. The reversal of 671130 is 31176.

It can be written as a sum of positive squares in 2 ways, for example, as 651249 + 19881 = 807^2 + 141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (671131) 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 11 ways as a sum of consecutive naturals, for example, 3639 + ... + 3818.

2⁶⁷¹¹³⁰ is an apocalyptic number.

671130 is an abundant number, since it is smaller than the sum of its proper divisors (1074042).

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

671130 is a wasteful number, since it uses less digits than its factorization.

671130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470 (or 7467 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 671130 is about 819.2252437517. The cubic root of 671130 is about 87.5525670526.

The spelling of 671130 in words is "six hundred seventy-one thousand, one hundred thirty".