287051272 has 16 divisors (see below), whose sum is σ = 539505900. Its totient is φ = 143183040.

The previous prime is 287051243. The next prime is 287051279. The reversal of 287051272 is 272150782.

It can be written as a sum of positive squares in 2 ways, for example, as 260693316 + 26357956 = 16146^2 + 5134^2 .

It is not an unprimeable number, because it can be changed into a prime (287051279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39247 + ... + 45982.

Almost surely, 2^287051272 is an apocalyptic number.

It is an amenable number.

287051272 is a deficient number, since it is larger than the sum of its proper divisors (252454628).

287051272 is a wasteful number, since it uses less digits than its factorization.

287051272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85656 (or 85652 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 287051272 is about 16942.5875237521. The cubic root of 287051272 is about 659.6595060345.

The spelling of 287051272 in words is "two hundred eighty-seven million, fifty-one thousand, two hundred seventy-two".