671135547 has 6 divisors (see below), whose sum is σ = 894907228. Its totient is φ = 447393784.

The previous prime is 671135527. The next prime is 671135551. The reversal of 671135547 is 745531176.

It is not a de Polignac number, because 671135547 - 2⁶ = 671135483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671135527) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 37393 + ... + 52349.

Almost surely, 2^671135547 is an apocalyptic number.

671135547 is a deficient number, since it is larger than the sum of its proper divisors (223771681).

671135547 is an frugal number, since it uses more digits than its factorization.

671135547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29917 (or 14960 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 671135547 is about 25906.2839288077. The cubic root of 671135547 is about 875.5280826408.

The spelling of 671135547 in words is "six hundred seventy-one million, one hundred thirty-five thousand, five hundred forty-seven".