5121816 has 64 divisors (see below), whose sum is σ = 14995200. Its totient is φ = 1427328.

The previous prime is 5121797. The next prime is 5121821. The reversal of 5121816 is 6181215.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6870 + ... + 7578.

It is an arithmetic number, because the mean of its divisors is an integer number (234300).

Almost surely, 2^5121816 is an apocalyptic number.

5121816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7497600).

5121816 is an abundant number, since it is smaller than the sum of its proper divisors (9873384).

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

5121816 is a wasteful number, since it uses less digits than its factorization.

5121816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 764 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 5121816 is about 2263.1429473191. The cubic root of 5121816 is about 172.3751501553.

The spelling of 5121816 in words is "five million, one hundred twenty-one thousand, eight hundred sixteen".