102310225 has 12 divisors (see below), whose sum is σ = 127028700. Its totient is φ = 81742400.

The previous prime is 102310223. The next prime is 102310253. The reversal of 102310225 is 522013201.

It can be written as a sum of positive squares in 6 ways, for example, as 15429184 + 86881041 = 3928^2 + 9321^2 .

It is not a de Polignac number, because 102310225 - 2¹ = 102310223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102310199 and 102310208.

It is not an unprimeable number, because it can be changed into a prime (102310223) 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, 21351 + ... + 25699.

It is an arithmetic number, because the mean of its divisors is an integer number (10585725).

Almost surely, 2^102310225 is an apocalyptic number.

It is an amenable number.

102310225 is a deficient number, since it is larger than the sum of its proper divisors (24718475).

102310225 is an equidigital number, since it uses as much as digits as its factorization.

102310225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300 (or 5295 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102310225 is about 10114.8517043010. The cubic root of 102310225 is about 467.7060774667.

Adding to 102310225 its reverse (522013201), we get a palindrome (624323426).

The spelling of 102310225 in words is "one hundred two million, three hundred ten thousand, two hundred twenty-five".