5538161 has 2 divisors, whose sum is σ = 5538162. Its totient is φ = 5538160.

The previous prime is 5538149. The next prime is 5538167. The reversal of 5538161 is 1618355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 1311025 = 2056^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 5538161 - 2⁶ = 5538097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5538167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769080 + 2769081.

It is an arithmetic number, because the mean of its divisors is an integer number (2769081).

Almost surely, 2^5538161 is an apocalyptic number.

It is an amenable number.

5538161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5538161 is an equidigital number, since it uses as much as digits as its factorization.

5538161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 5538161 is about 2353.3297686470. The cubic root of 5538161 is about 176.9247235415.

The spelling of 5538161 in words is "five million, five hundred thirty-eight thousand, one hundred sixty-one".