2102425 has 12 divisors (see below), whose sum is σ = 2807980. Its totient is φ = 1552320.

The previous prime is 2102417. The next prime is 2102431. The reversal of 2102425 is 5242012.

It can be written as a sum of positive squares in 6 ways, for example, as 700569 + 1401856 = 837^2 + 1184^2 .

It is not a de Polignac number, because 2102425 - 2³ = 2102417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102399 and 2102408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2910 + ... + 3559.

2^2102425 is an apocalyptic number.

2102425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102425 is a deficient number, since it is larger than the sum of its proper divisors (705555).

2102425 is a wasteful number, since it uses less digits than its factorization.

2102425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492 (or 6487 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2102425 is about 1449.9741377004. The cubic root of 2102425 is about 128.1071896719.

Adding to 2102425 its reverse (5242012), we get a palindrome (7344437).

The spelling of 2102425 in words is "two million, one hundred two thousand, four hundred twenty-five".