102201149 has 2 divisors, whose sum is σ = 102201150. Its totient is φ = 102201148.

The previous prime is 102201109. The next prime is 102201173. The reversal of 102201149 is 941102201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74269924 + 27931225 = 8618^2 + 5285^2 .

It is a cyclic number.

It is not a de Polignac number, because 102201149 - 2¹⁶ = 102135613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102201149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102201109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51100574 + 51100575.

It is an arithmetic number, because the mean of its divisors is an integer number (51100575).

Almost surely, 2^102201149 is an apocalyptic number.

It is an amenable number.

102201149 is a deficient number, since it is larger than the sum of its proper divisors (1).

102201149 is an equidigital number, since it uses as much as digits as its factorization.

102201149 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 20.

The square root of 102201149 is about 10109.4583930100. The cubic root of 102201149 is about 467.5398065374.

The spelling of 102201149 in words is "one hundred two million, two hundred one thousand, one hundred forty-nine".