2113147 has 2 divisors, whose sum is σ = 2113148.
Its totient is φ = 2113146.
The previous prime is 2113129. The next prime is 2113159. The reversal of 2113147 is 7413112.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2113147 - 219 = 1588859 is a prime.
It is not a weakly prime, because it can be changed into another prime (2113187) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056573 + 1056574.
It is an arithmetic number, because the mean of its divisors is an integer number (1056574).
22113147 is an apocalyptic number.
2113147 is a deficient number, since it is larger than the sum of its proper divisors (1).
2113147 is an equidigital number, since it uses as much as digits as its factorization.
2113147 is an evil number, because the sum of its binary digits is even.
The product of its digits is 168, while the sum is 19.
The square root of 2113147 is about 1453.6667431017.
Note that the first 3 decimals coincide.
The cubic root of 2113147 is about 128.3245952709.
Adding to 2113147 its reverse (7413112), we get a palindrome (9526259).
The spelling of 2113147 in words is "two million, one hundred thirteen thousand, one hundred forty-seven".