12123625 has 8 divisors (see below), whose sum is σ = 15130440. Its totient is φ = 9698800.

The previous prime is 12123607. The next prime is 12123637. The reversal of 12123625 is 52632121.

It can be written as a sum of positive squares in 4 ways, for example, as 746496 + 11377129 = 864^2 + 3373^2 .

It is not a de Polignac number, because 12123625 - 2¹⁵ = 12090857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12123596 and 12123605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48370 + ... + 48619.

It is an arithmetic number, because the mean of its divisors is an integer number (1891305).

Almost surely, 2^12123625 is an apocalyptic number.

It is an amenable number.

12123625 is a deficient number, since it is larger than the sum of its proper divisors (3006815).

12123625 is an frugal number, since it uses more digits than its factorization.

12123625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97004 (or 96994 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 12123625 is about 3481.8996252046. The cubic root of 12123625 is about 229.7263601395.

Adding to 12123625 its reverse (52632121), we get a palindrome (64755746).

The spelling of 12123625 in words is "twelve million, one hundred twenty-three thousand, six hundred twenty-five".