287371142 has 8 divisors (see below), whose sum is σ = 431128656. Its totient is φ = 143661592.

The previous prime is 287371129. The next prime is 287371211. The reversal of 287371142 is 241173782.

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

It is a congruent number.

It is an unprimeable number.

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, 17303 + ... + 29565.

It is an arithmetic number, because the mean of its divisors is an integer number (53891082).

Almost surely, 2^287371142 is an apocalyptic number.

287371142 is a deficient number, since it is larger than the sum of its proper divisors (143757514).

287371142 is a wasteful number, since it uses less digits than its factorization.

287371142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23982.

The product of its digits is 18816, while the sum is 35.

The square root of 287371142 is about 16952.0247168296. The cubic root of 287371142 is about 659.9044413228.

The spelling of 287371142 in words is "two hundred eighty-seven million, three hundred seventy-one thousand, one hundred forty-two".