103205425 has 6 divisors (see below), whose sum is σ = 127974758. Its totient is φ = 82564320.

The previous prime is 103205413. The next prime is 103205483. The reversal of 103205425 is 524502301.

It can be written as a sum of positive squares in 3 ways, for example, as 144 + 103205281 = 12^2 + 10159^2 .

It is not a de Polignac number, because 103205425 - 2²⁵ = 69650993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103205396 and 103205405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2064084 + ... + 2064133.

Almost surely, 2^103205425 is an apocalyptic number.

It is an amenable number.

103205425 is a deficient number, since it is larger than the sum of its proper divisors (24769333).

103205425 is an equidigital number, since it uses as much as digits as its factorization.

103205425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128227 (or 4128222 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 103205425 is about 10159.0070873093. The cubic root of 103205425 is about 469.0662387520.

Adding to 103205425 its reverse (524502301), we get a palindrome (627707726).

The spelling of 103205425 in words is "one hundred three million, two hundred five thousand, four hundred twenty-five".