12125506 has 4 divisors (see below), whose sum is σ = 18188262. Its totient is φ = 6062752.

The previous prime is 12125497. The next prime is 12125521. The reversal of 12125506 is 60552121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 2146225 = 3159^2 + 1465^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031375 + ... + 3031378.

Almost surely, 2^12125506 is an apocalyptic number.

12125506 is a deficient number, since it is larger than the sum of its proper divisors (6062756).

12125506 is an equidigital number, since it uses as much as digits as its factorization.

12125506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062755.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 12125506 is about 3482.1697259037. The cubic root of 12125506 is about 229.7382403304.

Adding to 12125506 its reverse (60552121), we get a palindrome (72677627).

The spelling of 12125506 in words is "twelve million, one hundred twenty-five thousand, five hundred six".