5161885 has 4 divisors (see below), whose sum is σ = 6194268. Its totient is φ = 4129504.

The previous prime is 5161879. The next prime is 5161909. The reversal of 5161885 is 5881615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5881615 = 5 ⋅1176323.

It can be written as a sum of positive squares in 2 ways, for example, as 4084441 + 1077444 = 2021^2 + 1038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5161885 is a prime.

It is a Duffinian number.

5161885 is a lucky number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 5161885.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 516184 + ... + 516193.

It is an arithmetic number, because the mean of its divisors is an integer number (1548567).

Almost surely, 2^5161885 is an apocalyptic number.

It is an amenable number.

5161885 is a deficient number, since it is larger than the sum of its proper divisors (1032383).

5161885 is a wasteful number, since it uses less digits than its factorization.

5161885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032382.

The product of its digits is 9600, while the sum is 34.

The square root of 5161885 is about 2271.9782129237. The cubic root of 5161885 is about 172.8234915515.

It can be divided in two parts, 516 and 1885, that added together give a 4-th power (2401 = 7⁴).

The spelling of 5161885 in words is "five million, one hundred sixty-one thousand, eight hundred eighty-five".