12125147 has 2 divisors, whose sum is σ = 12125148. Its totient is φ = 12125146.

The previous prime is 12125137. The next prime is 12125171. The reversal of 12125147 is 74152121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12125147 - 2⁶ = 12125083 is a prime.

It is not a weakly prime, because it can be changed into another prime (12125137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062573 + 6062574.

It is an arithmetic number, because the mean of its divisors is an integer number (6062574).

Almost surely, 2^12125147 is an apocalyptic number.

12125147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12125147 is an equidigital number, since it uses as much as digits as its factorization.

12125147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 23.

The square root of 12125147 is about 3482.1181772019. The cubic root of 12125147 is about 229.7359730204.

Adding to 12125147 its reverse (74152121), we get a palindrome (86277268).

The spelling of 12125147 in words is "twelve million, one hundred twenty-five thousand, one hundred forty-seven".