12107506 has 4 divisors (see below), whose sum is σ = 18161262. Its totient is φ = 6053752.

The previous prime is 12107497. The next prime is 12107507. The reversal of 12107506 is 60570121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60570121 = 359 ⋅168719.

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 4239481 = 2805^2 + 2059^2 .

It is not an unprimeable number, because it can be changed into a prime (12107507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3026875 + ... + 3026878.

Almost surely, 2^12107506 is an apocalyptic number.

12107506 is a deficient number, since it is larger than the sum of its proper divisors (6053756).

12107506 is an equidigital number, since it uses as much as digits as its factorization.

12107506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053755.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 12107506 is about 3479.5841705583. The cubic root of 12107506 is about 229.6245038738.

Adding to 12107506 its reverse (60570121), we get a palindrome (72677627).

The spelling of 12107506 in words is "twelve million, one hundred seven thousand, five hundred six".