671374142 has 8 divisors (see below), whose sum is σ = 1007492016. Its totient is φ = 335543472.

The previous prime is 671374141. The next prime is 671374199. The reversal of 671374142 is 241473176.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671374141) 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 3 ways as a sum of consecutive naturals, for example, 65858 + ... + 75365.

It is an arithmetic number, because the mean of its divisors is an integer number (125936502).

Almost surely, 2^671374142 is an apocalyptic number.

671374142 is a deficient number, since it is larger than the sum of its proper divisors (336117874).

671374142 is a wasteful number, since it uses less digits than its factorization.

671374142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143602.

The product of its digits is 28224, while the sum is 35.

The square root of 671374142 is about 25910.8884834156. Note that the first 3 decimals coincide. The cubic root of 671374142 is about 875.6318231712.

The spelling of 671374142 in words is "six hundred seventy-one million, three hundred seventy-four thousand, one hundred forty-two".