210284149 has 2 divisors, whose sum is σ = 210284150. Its totient is φ = 210284148.

The previous prime is 210284143. The next prime is 210284161. The reversal of 210284149 is 941482012.

210284149 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., 207561649 + 2722500 = 14407^2 + 1650^2 .

It is a cyclic number.

It is not a de Polignac number, because 210284149 - 2⁷ = 210284021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210284149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210284143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105142074 + 105142075.

It is an arithmetic number, because the mean of its divisors is an integer number (105142075).

Almost surely, 2^210284149 is an apocalyptic number.

It is an amenable number.

210284149 is a deficient number, since it is larger than the sum of its proper divisors (1).

210284149 is an equidigital number, since it uses as much as digits as its factorization.

210284149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 210284149 is about 14501.1775039133. The cubic root of 210284149 is about 594.6601632572.

The spelling of 210284149 in words is "two hundred ten million, two hundred eighty-four thousand, one hundred forty-nine".