215065323 has 24 divisors (see below), whose sum is σ = 339384240. Its totient is φ = 130152960.

The previous prime is 215065307. The next prime is 215065327. The reversal of 215065323 is 323560512.

215065323 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 653 + 2 + 3 = 666.

It is not a de Polignac number, because 215065323 - 2⁴ = 215065307 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (215065327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98815 + ... + 100967.

It is an arithmetic number, because the mean of its divisors is an integer number (14141010).

Almost surely, 2^215065323 is an apocalyptic number.

215065323 is a deficient number, since it is larger than the sum of its proper divisors (124318917).

215065323 is a wasteful number, since it uses less digits than its factorization.

215065323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179 (or 3176 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 215065323 is about 14665.1056252589. The cubic root of 215065323 is about 599.1333070082.

The spelling of 215065323 in words is "two hundred fifteen million, sixty-five thousand, three hundred twenty-three".