215300149 has 2 divisors, whose sum is σ = 215300150. Its totient is φ = 215300148.

The previous prime is 215300131. The next prime is 215300159. The reversal of 215300149 is 941003512.

215300149 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., 163200625 + 52099524 = 12775^2 + 7218^2 .

It is a cyclic number.

It is not a de Polignac number, because 215300149 - 2¹⁷ = 215169077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215300159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107650074 + 107650075.

It is an arithmetic number, because the mean of its divisors is an integer number (107650075).

Almost surely, 2^215300149 is an apocalyptic number.

It is an amenable number.

215300149 is a deficient number, since it is larger than the sum of its proper divisors (1).

215300149 is an equidigital number, since it uses as much as digits as its factorization.

215300149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 215300149 is about 14673.1097249356. The cubic root of 215300149 is about 599.3512886903.

The spelling of 215300149 in words is "two hundred fifteen million, three hundred thousand, one hundred forty-nine".