102206925 has 18 divisors (see below), whose sum is σ = 183064362. Its totient is φ = 54510240.

The previous prime is 102206911. The next prime is 102206953. The reversal of 102206925 is 529602201.

It can be written as a sum of positive squares in 3 ways, for example, as 11309769 + 90897156 = 3363^2 + 9534^2 .

It is not a de Polignac number, because 102206925 - 2⁶ = 102206861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 226902 + ... + 227351.

Almost surely, 2^102206925 is an apocalyptic number.

102206925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102206925 is a deficient number, since it is larger than the sum of its proper divisors (80857437).

102206925 is a wasteful number, since it uses less digits than its factorization.

102206925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454269 (or 454261 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 102206925 is about 10109.7440620423. The cubic root of 102206925 is about 467.5486141978.

The spelling of 102206925 in words is "one hundred two million, two hundred six thousand, nine hundred twenty-five".