13071520 has 96 divisors (see below), whose sum is σ = 38537856. Its totient is φ = 4070400.

The previous prime is 13071511. The next prime is 13071523. The reversal of 13071520 is 2517031.

It is a super-2 number, since 2×13071520² = 341729270220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13071523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11790 + ... + 12850.

It is an arithmetic number, because the mean of its divisors is an integer number (401436).

Almost surely, 2^13071520 is an apocalyptic number.

13071520 is a gapful number since it is divisible by the number (10) 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 13071520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19268928).

13071520 is an abundant number, since it is smaller than the sum of its proper divisors (25466336).

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

13071520 is a wasteful number, since it uses less digits than its factorization.

13071520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 13071520 is about 3615.4557112486. The cubic root of 13071520 is about 235.5638790355.

Adding to 13071520 its reverse (2517031), we get a palindrome (15588551).

The spelling of 13071520 in words is "thirteen million, seventy-one thousand, five hundred twenty".