5180861 has 4 divisors (see below), whose sum is σ = 5920992. Its totient is φ = 4440732.

The previous prime is 5180839. The next prime is 5180887. The reversal of 5180861 is 1680815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1680815 = 5 ⋅336163.

It is a cyclic number.

It is not a de Polignac number, because 5180861 - 2¹⁸ = 4918717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5180761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370055 + ... + 370068.

It is an arithmetic number, because the mean of its divisors is an integer number (1480248).

Almost surely, 2^5180861 is an apocalyptic number.

It is an amenable number.

5180861 is a deficient number, since it is larger than the sum of its proper divisors (740131).

5180861 is an equidigital number, since it uses as much as digits as its factorization.

5180861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740130.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 5180861 is about 2276.1504783296. The cubic root of 5180861 is about 173.0350091199.

The spelling of 5180861 in words is "five million, one hundred eighty thousand, eight hundred sixty-one".