5167861 has 2 divisors, whose sum is σ = 5167862. Its totient is φ = 5167860.

The previous prime is 5167853. The next prime is 5167879. The reversal of 5167861 is 1687615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5130225 + 37636 = 2265^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 5167861 - 2³ = 5167853 is a prime.

It is an Ulam number.

5167861 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5167891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583930 + 2583931.

It is an arithmetic number, because the mean of its divisors is an integer number (2583931).

Almost surely, 2^5167861 is an apocalyptic number.

It is an amenable number.

5167861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5167861 is an equidigital number, since it uses as much as digits as its factorization.

5167861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 5167861 is about 2273.2929859567. The cubic root of 5167861 is about 172.8901593728.

The spelling of 5167861 in words is "five million, one hundred sixty-seven thousand, eight hundred sixty-one".