4145861393 has 2 divisors, whose sum is σ = 4145861394. Its totient is φ = 4145861392.

The previous prime is 4145861387. The next prime is 4145861429. The reversal of 4145861393 is 3931685414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4120741249 + 25120144 = 64193^2 + 5012^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145861393 - 2¹² = 4145857297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4145861593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072930696 + 2072930697.

It is an arithmetic number, because the mean of its divisors is an integer number (2072930697).

Almost surely, 2^4145861393 is an apocalyptic number.

It is an amenable number.

4145861393 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145861393 is an equidigital number, since it uses as much as digits as its factorization.

4145861393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 4145861393 is about 64388.3638012335. The cubic root of 4145861393 is about 1606.4662013269.

The spelling of 4145861393 in words is "four billion, one hundred forty-five million, eight hundred sixty-one thousand, three hundred ninety-three".