4145117 has 2 divisors, whose sum is σ = 4145118. Its totient is φ = 4145116.

The previous prime is 4145111. The next prime is 4145171. The reversal of 4145117 is 7115414.

It is a happy number.

Together with next prime (4145171) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2785561 + 1359556 = 1669^2 + 1166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4145117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4145092 and 4145101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4145111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072558 + 2072559.

It is an arithmetic number, because the mean of its divisors is an integer number (2072559).

Almost surely, 2^4145117 is an apocalyptic number.

It is an amenable number.

4145117 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145117 is an equidigital number, since it uses as much as digits as its factorization.

4145117 is an evil number, because the sum of its binary digits is even.

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

The square root of 4145117 is about 2035.9560407828. The cubic root of 4145117 is about 160.6370048106.

The spelling of 4145117 in words is "four million, one hundred forty-five thousand, one hundred seventeen".