215333047 has 2 divisors, whose sum is σ = 215333048. Its totient is φ = 215333046.

The previous prime is 215333039. The next prime is 215333071. The reversal of 215333047 is 740333512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215333047 - 2³ = 215333039 is a prime.

It is a super-2 number, since 2×215333047² = 92736642260608418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215333087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107666523 + 107666524.

It is an arithmetic number, because the mean of its divisors is an integer number (107666524).

Almost surely, 2^215333047 is an apocalyptic number.

215333047 is a deficient number, since it is larger than the sum of its proper divisors (1).

215333047 is an equidigital number, since it uses as much as digits as its factorization.

215333047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 215333047 is about 14674.2307123747. The cubic root of 215333047 is about 599.3818142219.

Adding to 215333047 its reverse (740333512), we get a palindrome (955666559).

The spelling of 215333047 in words is "two hundred fifteen million, three hundred thirty-three thousand, forty-seven".