215052226 has 8 divisors (see below), whose sum is σ = 333701820. Its totient is φ = 103818288.

The previous prime is 215052199. The next prime is 215052259. The reversal of 215052226 is 622250512.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 196981225 + 18071001 = 14035^2 + 4251^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 215052226.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853841 + ... + 1853956.

Almost surely, 2^215052226 is an apocalyptic number.

215052226 is a deficient number, since it is larger than the sum of its proper divisors (118649594).

215052226 is a wasteful number, since it uses less digits than its factorization.

215052226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707828.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 215052226 is about 14664.6590822971. The cubic root of 215052226 is about 599.1211447992.

The spelling of 215052226 in words is "two hundred fifteen million, fifty-two thousand, two hundred twenty-six".