215205041 has 2 divisors, whose sum is σ = 215205042. Its totient is φ = 215205040.

The previous prime is 215205013. The next prime is 215205059. The reversal of 215205041 is 140502512.

215205041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187115041 + 28090000 = 13679^2 + 5300^2 .

It is a cyclic number.

It is not a de Polignac number, because 215205041 - 2²⁶ = 148096177 is a prime.

It is not a weakly prime, because it can be changed into another prime (215405041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107602520 + 107602521.

It is an arithmetic number, because the mean of its divisors is an integer number (107602521).

Almost surely, 2^215205041 is an apocalyptic number.

It is an amenable number.

215205041 is a deficient number, since it is larger than the sum of its proper divisors (1).

215205041 is an equidigital number, since it uses as much as digits as its factorization.

215205041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 215205041 is about 14669.8684724847. The cubic root of 215205041 is about 599.2630219948.

Adding to 215205041 its reverse (140502512), we get a palindrome (355707553).

The spelling of 215205041 in words is "two hundred fifteen million, two hundred five thousand, forty-one".