215036897 has 2 divisors, whose sum is σ = 215036898. Its totient is φ = 215036896.

The previous prime is 215036881. The next prime is 215036917. The reversal of 215036897 is 798630512.

215036897 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 can be written as a sum of positive squares in only one way, i.e., 109851361 + 105185536 = 10481^2 + 10256^2 .

It is a cyclic number.

It is not a de Polignac number, because 215036897 - 2⁴ = 215036881 is a prime.

It is not a weakly prime, because it can be changed into another prime (215036837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107518448 + 107518449.

It is an arithmetic number, because the mean of its divisors is an integer number (107518449).

Almost surely, 2^215036897 is an apocalyptic number.

It is an amenable number.

215036897 is a deficient number, since it is larger than the sum of its proper divisors (1).

215036897 is an equidigital number, since it uses as much as digits as its factorization.

215036897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 215036897 is about 14664.1364218968. The cubic root of 215036897 is about 599.1069092708.

The spelling of 215036897 in words is "two hundred fifteen million, thirty-six thousand, eight hundred ninety-seven".