102705025 has 12 divisors (see below), whose sum is σ = 127487872. Its totient is φ = 82077840.

The previous prime is 102705023. The next prime is 102705049. The reversal of 102705025 is 520507201.

It is not a de Polignac number, because 102705025 - 2¹ = 102705023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102704987 and 102705005.

It is not an unprimeable number, because it can be changed into a prime (102705023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34132 + ... + 37018.

Almost surely, 2^102705025 is an apocalyptic number.

It is an amenable number.

102705025 is a deficient number, since it is larger than the sum of its proper divisors (24782847).

102705025 is a wasteful number, since it uses less digits than its factorization.

102705025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320 (or 4315 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 102705025 is about 10134.3487703947. The cubic root of 102705025 is about 468.3069081085.

The spelling of 102705025 in words is "one hundred two million, seven hundred five thousand, twenty-five".