102755225 has 24 divisors (see below), whose sum is σ = 138225528. Its totient is φ = 75468800.

The previous prime is 102755209. The next prime is 102755227. The reversal of 102755225 is 522557201.

It can be written as a sum of positive squares in 12 ways, for example, as 17081689 + 85673536 = 4133^2 + 9256^2 .

It is not a de Polignac number, because 102755225 - 2⁴ = 102755209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102755227) 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 in 23 ways as a sum of consecutive naturals, for example, 14477 + ... + 20373.

It is an arithmetic number, because the mean of its divisors is an integer number (5759397).

Almost surely, 2^102755225 is an apocalyptic number.

It is an amenable number.

102755225 is a deficient number, since it is larger than the sum of its proper divisors (35470303).

102755225 is a wasteful number, since it uses less digits than its factorization.

102755225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 102755225 is about 10136.8251933236. The cubic root of 102755225 is about 468.3831951179.

The spelling of 102755225 in words is "one hundred two million, seven hundred fifty-five thousand, two hundred twenty-five".