671155 has 8 divisors (see below), whose sum is σ = 810000. Its totient is φ = 533856.

The previous prime is 671141. The next prime is 671159. The reversal of 671155 is 551176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671155 - 2⁵ = 671123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (101250).

2⁶⁷¹¹⁵⁵ is an apocalyptic number.

671155 is a deficient number, since it is larger than the sum of its proper divisors (138845).

671155 is a wasteful number, since it uses less digits than its factorization.

671155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its digits is 1050, while the sum is 25.

The square root of 671155 is about 819.2405019285. The cubic root of 671155 is about 87.5536541679.

The spelling of 671155 in words is "six hundred seventy-one thousand, one hundred fifty-five".