5018161 has 2 divisors, whose sum is σ = 5018162. Its totient is φ = 5018160.

The previous prime is 5018149. The next prime is 5018177. The reversal of 5018161 is 1618105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4704561 + 313600 = 2169^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 5018161 - 2⁵ = 5018129 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (5018141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509080 + 2509081.

It is an arithmetic number, because the mean of its divisors is an integer number (2509081).

Almost surely, 2^5018161 is an apocalyptic number.

It is an amenable number.

5018161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5018161 is an equidigital number, since it uses as much as digits as its factorization.

5018161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 5018161 is about 2240.1252197143. The cubic root of 5018161 is about 171.2043769989.

The spelling of 5018161 in words is "five million, eighteen thousand, one hundred sixty-one".