102130425 has 18 divisors (see below), whose sum is σ = 182927342. Its totient is φ = 54469440.

The previous prime is 102130403. The next prime is 102130451. The reversal of 102130425 is 524031201.

It can be written as a sum of positive squares in 3 ways, for example, as 281961 + 101848464 = 531^2 + 10092^2 .

It is not a de Polignac number, because 102130425 - 2⁵ = 102130393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102130398 and 102130407.

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, 226732 + ... + 227181.

Almost surely, 2^102130425 is an apocalyptic number.

102130425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102130425 is a deficient number, since it is larger than the sum of its proper divisors (80796917).

102130425 is a wasteful number, since it uses less digits than its factorization.

102130425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453929 (or 453921 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102130425 is about 10105.9598752419. The cubic root of 102130425 is about 467.4319345747.

Adding to 102130425 its reverse (524031201), we get a palindrome (626161626).

The spelling of 102130425 in words is "one hundred two million, one hundred thirty thousand, four hundred twenty-five".