5161820 has 24 divisors (see below), whose sum is σ = 11020128. Its totient is φ = 2030400.

The previous prime is 5161813. The next prime is 5161831. The reversal of 5161820 is 281615.

5161820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (459172).

Almost surely, 2^5161820 is an apocalyptic number.

It is an amenable number.

5161820 is an abundant number, since it is smaller than the sum of its proper divisors (5858308).

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

5161820 is a wasteful number, since it uses less digits than its factorization.

5161820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301 (or 4299 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 5161820 is about 2271.9639081640. The cubic root of 5161820 is about 172.8227661334.

The spelling of 5161820 in words is "five million, one hundred sixty-one thousand, eight hundred twenty".