102866425 has 12 divisors (see below), whose sum is σ = 127698300. Its totient is φ = 82200320.

The previous prime is 102866389. The next prime is 102866479. The reversal of 102866425 is 524668201.

It can be written as a sum of positive squares in 6 ways, for example, as 22924944 + 79941481 = 4788^2 + 8941^2 .

It is not a de Polignac number, because 102866425 - 2¹⁵ = 102833657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28101 + ... + 31549.

It is an arithmetic number, because the mean of its divisors is an integer number (10641525).

Almost surely, 2^102866425 is an apocalyptic number.

It is an amenable number.

102866425 is a deficient number, since it is larger than the sum of its proper divisors (24831875).

102866425 is a wasteful number, since it uses less digits than its factorization.

102866425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652 (or 4647 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 102866425 is about 10142.3086622327. The cubic root of 102866425 is about 468.5520930477.

The spelling of 102866425 in words is "one hundred two million, eight hundred sixty-six thousand, four hundred twenty-five".