287116245 has 80 divisors (see below), whose sum is σ = 578616192. Its totient is φ = 135146880.

The previous prime is 287116241. The next prime is 287116259. The reversal of 287116245 is 542611782.

287116245 is a `hidden beast` number, since 28 + 7 + 1 + 1 + 624 + 5 = 666.

It is not a de Polignac number, because 287116245 - 2² = 287116241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287116241) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 119910 + ... + 122280.

Almost surely, 2^287116245 is an apocalyptic number.

It is an amenable number.

287116245 is an abundant number, since it is smaller than the sum of its proper divisors (291499947).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287116245 is a wasteful number, since it uses less digits than its factorization.

287116245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424 (or 2415 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 287116245 is about 16944.5048614588. The cubic root of 287116245 is about 659.7092727811.

The spelling of 287116245 in words is "two hundred eighty-seven million, one hundred sixteen thousand, two hundred forty-five".