288365213 has 8 divisors (see below), whose sum is σ = 291053400. Its totient is φ = 285687360.

The previous prime is 288365179. The next prime is 288365219. The reversal of 288365213 is 312563882.

It can be written as a sum of positive squares in 4 ways, for example, as 52374169 + 235991044 = 7237^2 + 15362^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 288365213 - 2²⁰ = 287316637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288365219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60431 + ... + 65027.

It is an arithmetic number, because the mean of its divisors is an integer number (36381675).

Almost surely, 2^288365213 is an apocalyptic number.

It is an amenable number.

288365213 is a deficient number, since it is larger than the sum of its proper divisors (2688187).

288365213 is a wasteful number, since it uses less digits than its factorization.

288365213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167.

The product of its digits is 69120, while the sum is 38.

The square root of 288365213 is about 16981.3195305901. The cubic root of 288365213 is about 660.6644769498.

The spelling of 288365213 in words is "two hundred eighty-eight million, three hundred sixty-five thousand, two hundred thirteen".