5161520 has 80 divisors (see below), whose sum is σ = 14790720. Its totient is φ = 1631232.

The previous prime is 5161517. The next prime is 5161529. The reversal of 5161520 is 251615.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5161492 and 5161501.

It is not an unprimeable number, because it can be changed into a prime (5161529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6926 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (184884).

Almost surely, 2^5161520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5161520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7395360).

5161520 is an abundant number, since it is smaller than the sum of its proper divisors (9629200).

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

5161520 is a wasteful number, since it uses less digits than its factorization.

5161520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 5161520 is about 2271.8978850292. The cubic root of 5161520 is about 172.8194179710.

The spelling of 5161520 in words is "five million, one hundred sixty-one thousand, five hundred twenty".