5131520 has 72 divisors (see below), whose sum is σ = 12999840. Its totient is φ = 1935360.

The previous prime is 5131517. The next prime is 5131541. The reversal of 5131520 is 251315.

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, 24215 + ... + 24425.

Almost surely, 2^5131520 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 5131520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6499920).

5131520 is an abundant number, since it is smaller than the sum of its proper divisors (7868320).

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

5131520 is a wasteful number, since it uses less digits than its factorization.

5131520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 5131520 is about 2265.2858539266. The cubic root of 5131520 is about 172.4839444554.

Adding to 5131520 its reverse (251315), we get a palindrome (5382835).

The spelling of 5131520 in words is "five million, one hundred thirty-one thousand, five hundred twenty".