215045011 has 2 divisors, whose sum is σ = 215045012. Its totient is φ = 215045010.

The previous prime is 215044981. The next prime is 215045071. The reversal of 215045011 is 110540512.

215045011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215045011 - 2¹³ = 215036819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215045011.

It is not a weakly prime, because it can be changed into another prime (215045071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107522505 + 107522506.

It is an arithmetic number, because the mean of its divisors is an integer number (107522506).

Almost surely, 2^215045011 is an apocalyptic number.

215045011 is a deficient number, since it is larger than the sum of its proper divisors (1).

215045011 is an equidigital number, since it uses as much as digits as its factorization.

215045011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 215045011 is about 14664.4130806521. The cubic root of 215045011 is about 599.1144445549.

Adding to 215045011 its reverse (110540512), we get a palindrome (325585523).

The spelling of 215045011 in words is "two hundred fifteen million, forty-five thousand, eleven".