671141571 has 4 divisors (see below), whose sum is σ = 894855432. Its totient is φ = 447427712.

The previous prime is 671141551. The next prime is 671141591. The reversal of 671141571 is 175141176.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (671141551) and next prime (671141591).

It is a cyclic number.

It is not a de Polignac number, because 671141571 - 2⁵ = 671141539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671141501) 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 3 ways as a sum of consecutive naturals, for example, 111856926 + ... + 111856931.

It is an arithmetic number, because the mean of its divisors is an integer number (223713858).

Almost surely, 2^671141571 is an apocalyptic number.

671141571 is a deficient number, since it is larger than the sum of its proper divisors (223713861).

671141571 is a wasteful number, since it uses less digits than its factorization.

671141571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223713860.

The product of its digits is 5880, while the sum is 33.

The square root of 671141571 is about 25906.4001937745. The cubic root of 671141571 is about 875.5307021640.

The spelling of 671141571 in words is "six hundred seventy-one million, one hundred forty-one thousand, five hundred seventy-one".