12240625 has 12 divisors (see below), whose sum is σ = 15303708. Its totient is φ = 9790000.

The previous prime is 12240607. The next prime is 12240643. The reversal of 12240625 is 52604221.

It is an interprime number because it is at equal distance from previous prime (12240607) and next prime (12240643).

It can be written as a sum of positive squares in 6 ways, for example, as 8363664 + 3876961 = 2892^2 + 1969^2 .

It is not a de Polignac number, because 12240625 - 2¹³ = 12232433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12240596 and 12240605.

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, 1167 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (1275309).

Almost surely, 2^12240625 is an apocalyptic number.

It is an amenable number.

12240625 is a deficient number, since it is larger than the sum of its proper divisors (3063083).

12240625 is an frugal number, since it uses more digits than its factorization.

12240625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942 (or 3922 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 12240625 is about 3498.6604579467. The cubic root of 12240625 is about 230.4629930095.

Adding to 12240625 its reverse (52604221), we get a palindrome (64844846).

The spelling of 12240625 in words is "twelve million, two hundred forty thousand, six hundred twenty-five".