671185151 has 24 divisors (see below), whose sum is σ = 845943840. Its totient is φ = 518567616.

The previous prime is 671185147. The next prime is 671185153. The reversal of 671185151 is 151581176.

It is a happy number.

671185151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671185151 - 2² = 671185147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671185153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166265 + ... + 170253.

It is an arithmetic number, because the mean of its divisors is an integer number (35247660).

Almost surely, 2^671185151 is an apocalyptic number.

671185151 is a deficient number, since it is larger than the sum of its proper divisors (174758689).

671185151 is a wasteful number, since it uses less digits than its factorization.

671185151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095 (or 4052 counting only the distinct ones).

The product of its digits is 8400, while the sum is 35.

The square root of 671185151 is about 25907.2412850153. The cubic root of 671185151 is about 875.5496523646.

The spelling of 671185151 in words is "six hundred seventy-one million, one hundred eighty-five thousand, one hundred fifty-one".