4120254161 has 2 divisors, whose sum is σ = 4120254162. Its totient is φ = 4120254160.

The previous prime is 4120254137. The next prime is 4120254169. The reversal of 4120254161 is 1614520214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3999803536 + 120450625 = 63244^2 + 10975^2 .

It is a cyclic number.

It is not a de Polignac number, because 4120254161 - 2⁶ = 4120254097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4120254161.

It is not a weakly prime, because it can be changed into another prime (4120254169) 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, 2060127080 + 2060127081.

It is an arithmetic number, because the mean of its divisors is an integer number (2060127081).

Almost surely, 2^4120254161 is an apocalyptic number.

It is an amenable number.

4120254161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4120254161 is an equidigital number, since it uses as much as digits as its factorization.

4120254161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4120254161 is about 64189.2059539608. The cubic root of 4120254161 is about 1603.1518808326.

Adding to 4120254161 its reverse (1614520214), we get a palindrome (5734774375).

The spelling of 4120254161 in words is "four billion, one hundred twenty million, two hundred fifty-four thousand, one hundred sixty-one".