12113147 has 2 divisors, whose sum is σ = 12113148. Its totient is φ = 12113146.

The previous prime is 12113119. The next prime is 12113159. The reversal of 12113147 is 74131121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12113147 - 2⁶ = 12113083 is a prime.

It is not a weakly prime, because it can be changed into another prime (12113117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056573 + 6056574.

It is an arithmetic number, because the mean of its divisors is an integer number (6056574).

Almost surely, 2^12113147 is an apocalyptic number.

12113147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113147 is an equidigital number, since it uses as much as digits as its factorization.

12113147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168, while the sum is 20.

The square root of 12113147 is about 3480.3946615291. The cubic root of 12113147 is about 229.6601597365.

Adding to 12113147 its reverse (74131121), we get a palindrome (86244268).

The spelling of 12113147 in words is "twelve million, one hundred thirteen thousand, one hundred forty-seven".