102804225 has 12 divisors (see below), whose sum is σ = 169969776. Its totient is φ = 54828880.

The previous prime is 102804223. The next prime is 102804281. The reversal of 102804225 is 522408201.

It is not a de Polignac number, because 102804225 - 2¹ = 102804223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102804195 and 102804204.

It is not an unprimeable number, because it can be changed into a prime (102804223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685287 + ... + 685436.

It is an arithmetic number, because the mean of its divisors is an integer number (14164148).

Almost surely, 2^102804225 is an apocalyptic number.

102804225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102804225 is a deficient number, since it is larger than the sum of its proper divisors (67165551).

102804225 is a wasteful number, since it uses less digits than its factorization.

102804225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370736 (or 1370731 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 102804225 is about 10139.2418355615. The cubic root of 102804225 is about 468.4576345747.

The spelling of 102804225 in words is "one hundred two million, eight hundred four thousand, two hundred twenty-five".