215047163 has 2 divisors, whose sum is σ = 215047164. Its totient is φ = 215047162.

The previous prime is 215047121. The next prime is 215047177. The reversal of 215047163 is 361740512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215047163 - 2⁶ = 215047099 is a prime.

It is not a weakly prime, because it can be changed into another prime (215047463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107523581 + 107523582.

It is an arithmetic number, because the mean of its divisors is an integer number (107523582).

Almost surely, 2^215047163 is an apocalyptic number.

215047163 is a deficient number, since it is larger than the sum of its proper divisors (1).

215047163 is an equidigital number, since it uses as much as digits as its factorization.

215047163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 215047163 is about 14664.4864553792. The cubic root of 215047163 is about 599.1164430357.

Adding to 215047163 its reverse (361740512), we get a palindrome (576787675).

The spelling of 215047163 in words is "two hundred fifteen million, forty-seven thousand, one hundred sixty-three".