5166861 has 32 divisors (see below), whose sum is σ = 8563968. Its totient is φ = 2703360.

The previous prime is 5166829. The next prime is 5166869. The reversal of 5166861 is 1686615.

It is not a de Polignac number, because 5166861 - 2⁵ = 5166829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14461 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (267624).

Almost surely, 2^5166861 is an apocalyptic number.

5166861 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5166861 is a deficient number, since it is larger than the sum of its proper divisors (3397107).

5166861 is a wasteful number, since it uses less digits than its factorization.

5166861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 8640, while the sum is 33.

The square root of 5166861 is about 2273.0730300630. The cubic root of 5166861 is about 172.8790070275.

The spelling of 5166861 in words is "five million, one hundred sixty-six thousand, eight hundred sixty-one".