215141065 has 4 divisors (see below), whose sum is σ = 258169284. Its totient is φ = 172112848.

The previous prime is 215141029. The next prime is 215141071. The reversal of 215141065 is 560141512.

It is a happy number.

215141065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128799801 + 86341264 = 11349^2 + 9292^2 .

It is a cyclic number.

It is not a de Polignac number, because 215141065 - 2¹³ = 215132873 is a prime.

It is a Duffinian number.

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, 21514102 + ... + 21514111.

It is an arithmetic number, because the mean of its divisors is an integer number (64542321).

Almost surely, 2^215141065 is an apocalyptic number.

It is an amenable number.

215141065 is a deficient number, since it is larger than the sum of its proper divisors (43028219).

215141065 is an equidigital number, since it uses as much as digits as its factorization.

215141065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43028218.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 215141065 is about 14667.6877864236. The cubic root of 215141065 is about 599.2036332825.

Adding to 215141065 its reverse (560141512), we get a palindrome (775282577).

The spelling of 215141065 in words is "two hundred fifteen million, one hundred forty-one thousand, sixty-five".