5181020 has 24 divisors (see below), whose sum is σ = 11717664. Its totient is φ = 1912896.

The previous prime is 5181019. The next prime is 5181023. The reversal of 5181020 is 201815.

5181020 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 5181020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9704 + ... + 10223.

It is an arithmetic number, because the mean of its divisors is an integer number (488236).

Almost surely, 2^5181020 is an apocalyptic number.

It is an amenable number.

5181020 is an abundant number, since it is smaller than the sum of its proper divisors (6536644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5181020 is a wasteful number, since it uses less digits than its factorization.

5181020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19949 (or 19947 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 5181020 is about 2276.1854054536. The cubic root of 5181020 is about 173.0367792430.

Adding to 5181020 its reverse (201815), we get a palindrome (5382835).

The spelling of 5181020 in words is "five million, one hundred eighty-one thousand, twenty".