102210049 has 2 divisors, whose sum is σ = 102210050. Its totient is φ = 102210048.

The previous prime is 102210037. The next prime is 102210067. The reversal of 102210049 is 940012201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89643024 + 12567025 = 9468^2 + 3545^2 .

It is an emirp because it is prime and its reverse (940012201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102210049 - 2¹⁹ = 101685761 is a prime.

It is a super-3 number, since 3×102210049³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (102210019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105024 + 51105025.

It is an arithmetic number, because the mean of its divisors is an integer number (51105025).

Almost surely, 2^102210049 is an apocalyptic number.

It is an amenable number.

102210049 is a deficient number, since it is larger than the sum of its proper divisors (1).

102210049 is an equidigital number, since it uses as much as digits as its factorization.

102210049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 102210049 is about 10109.8985652676. The cubic root of 102210049 is about 467.5533777595.

The spelling of 102210049 in words is "one hundred two million, two hundred ten thousand, forty-nine".